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Blood Sweat Tears and Grease => Projects => Trackers => Topic started by: MJPriceisright on Dec 17, 2012, 14:21:58

Title: trackin xv750
Post by: MJPriceisright on Dec 17, 2012, 14:21:58
hey guys, been on the site for a while now, currently doing two other builds as well, one of which is a cb450 and my brother and i are doing a yamha tx500... but all the while ive been doing those builds ive always loved the xv750's and how they look stripped down.. so when i came across one in my area for dirt cheap i couldnt pass it up.. so the background of the bike, its an 83 midnight edition virago xv750, which i was excited about, cause i love black and now this will be less work cause its already done they way i like it..  it was a police abandoned bike, guy must have been drunk, crashed (HARD) and fled the scene.. who wants a dui these days ya know?  so i got the bike, non running for 150 bucks.  doesnt really have much rash at all, aside from the obvious front end needing replacement.. so im thinking all black tracker bike, sport bike front end, renthal bars, stubbing little seat.. they have a rear to front conversion so i can run equal fat tires with the most outrageous knobs i can find.. which has been a problem to find cause these are 16" rims.. so yeah  thats kind of where im at.. just picked up a front end off a guy, 2000 suzuki gsxr750, inverted 50mm forks, so that was good, just need to get some time to get them on.  please follow along and give advice or ask questions, this will be my first tracker bike, but im super excited about it.  happy holidays.
Title: Re: trackin xv750
Post by: MJPriceisright on Dec 17, 2012, 14:26:17
so my first update post is going to be the tear down and cutting process.. i love that open and exposed rear shock, i love mono shocks, if you take a peek at my other builds, monoshocks.. so its nice this one already has one.. so i got all the shit off and started cutting.. ive done my research and am currently following other builds that have done the same with no issues..  also had to get rid of the stock air shock.. talk about lucking out.. the yamaha yzf600R shock that im using for the cb450 just happens to slide right into place, except the external resevoir keeps it from fitting in the top stock mount.. no problem.. the yamaha yzf600 (non R model) doesnt have an external resevoir, so it mounted right up, totally lucked out, cause ive seen guys mount sport bike shocks, but need to make their own mounts cause they are significantly shorter.  also just clamped on a piece of cut wood to get an idea of what i think the rear tail is gonna look like.. thoughts anyone?
Title: Re: trackin xv750
Post by: MJPriceisright on Dec 17, 2012, 15:10:28
forgot to mention my brother and I did go through the wiring mess, and in about 30 minutes had the bike running which was great, now to just get all the wiring figured out, and ditch what we dont need.
Title: Re: trackin xv750
Post by: ProSimex on Dec 17, 2012, 15:35:12
cool, these things have so much potential its absurd.
Title: Re: trackin xv750
Post by: beachcomber on Dec 17, 2012, 17:39:58
MJ - what a priceless use of an engine stand !!!!!!!!!!!!!!! I'm going to shamelessly steal that idea and tell all my English mates that I thought of it !!

Seriously - I've got an engine stand that hasn't seen use since I gave up Drag Racing [ 10 years ago ], threatened to sell it a few times, and so it lives again.

Oh yes - you'll love Yams big Vees, they become addictive. I have 3 now - one's a Cafe Racer build [ 60's style ] and one a Boardtracker 'ish. Still undecided about the 3rd., but I feel a sidecar outfit is in my future.
Title: Re: trackin xv750
Post by: MJPriceisright on Dec 18, 2012, 11:18:21
haha your more than welcome to take the idea and call it your own.. i cant take credit for it, was my brothers idea, i actually called him an idiot at first when i was holding up the damn thing while he was taking his sweet ass time to get it in there.  ah well, bite my tongue.  should have the forks and what not this weekend or early next, so getting this thing back on two wheels is priority at the moment, but the most attention is going towards my cb450.
Title: Re: trackin xv750
Post by: beachcomber on Dec 18, 2012, 17:19:46
haha your more than welcome to take the idea and call it your own.. i cant take credit for it, was my brothers idea, i actually called him an idiot at first when i was holding up the damn thing while he was taking his sweet ass time to get it in there.  ah well, bite my tongue.  should have the forks and what not this weekend or early next, so getting this thing back on two wheels is priority at the moment, but the most attention is going towards my cb450.

Multi-projects - that's what it's all about. And women say we men can't multi-task !!!!!!!!!!!!!!!
Title: Re: trackin xv750
Post by: MJPriceisright on Dec 18, 2012, 17:25:31
was doing some searching around today looking for good knobby tires for the project and was coming up empty handed in the tire department because its a 16" rim.. im planning on doing the rear/front conversion so ill have 16" all around... was hoping to find some really outlandish knobby tires.. if anyone knows a brand that makes em please shed the light on me. 
Title: Re: trackin xv750
Post by: MJPriceisright on Dec 18, 2012, 17:32:24
if the rear was only a 17" i could get real crazy with some of these tires i have been finding..  they make any other shaft drive yamaha's with 17" rears?  i know the xj is an 18" but a narrower rim, id like to stay as wide as possible on the front and rear.
Title: Re: trackin xv750
Post by: MJPriceisright on Dec 18, 2012, 17:49:07
anybody have a clue what kind of tires these are?  looks like the most radical tires i can find for 16" rims.. kind of dissapointing.
Title: Re: trackin xv750
Post by: danejurrous on Dec 18, 2012, 18:33:03
Pirelli Mt 90 or 60 maybe?
Title: Re: trackin xv750
Post by: DesmoBro on Dec 19, 2012, 21:06:24
Not sure if this is where you should buy it but they make em

http://www.roguemotorsportz.com/i18259/Kenda-K-760-Trakmaster-II-Motorcycle-Tire-90-100-16-rear.aspx?sc=Google&ad=Products&gclid=CIzknJTlp7QCFQqe4AodB2QAUw
Title: Re: trackin xv750
Post by: MJPriceisright on Dec 20, 2012, 17:54:58
that link you gave me would only be a 90 width for my 16" rim... im looking for something like 130/90/16.. wide, chunky, etc.. what i have found so far is Vee rubber performance tires, couple different models, not too aggressive but looks alright, here is the link for a tire i found.. its 120 width.

http://veerubber.co.th/veerubber2012/motorcycle_tires.php?Ptype=Enduro&lang=en&mid=6
Title: Re: trackin xv750
Post by: Tripler on Dec 20, 2012, 19:12:06
they make any other shaft drive yamaha's with 17" rears?



Yes,  1980xs850G, i have one if your research works out.
Title: Re: trackin xv750
Post by: MJPriceisright on Dec 31, 2012, 12:15:48
saw this bike the other day and its exacting the inspirating im going after.. this bike is simply amazing in my opinion, and you can easily replicate this to an extent using the xv.  have a great new year!
Title: Re: trackin xv750
Post by: MJPriceisright on Dec 31, 2012, 12:17:49
they make any other shaft drive yamaha's with 17" rears?



Yes,  1980xs850G, i have one if your research works out.

was looking around at parts fiches etc.. doesnt look like it will quite work out.  i could be wrong.
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 02, 2013, 08:29:41
couple updates here, had some time and came across a front end for the bat bike build, (seems to be the trending name in our garage as of late). came off a 2001 gsxr1000, just needs to be painted or PC'd black, whichever comes first.. also kind of mocked up what id like the rear seat to look like, stubby, nutcracker, whatever youd like to call it, but it looks pretty good.  up next will most likely be the rear to front conversion, need to think about braking.. id really like to do drums all around so i dont have to mess with a master cylinder, trying to keep the handlebars as simple as possible, but some thought will have to go into that..  anyone else have thoughts, comments, random insults?  happy new year everyone!
Title: Re: trackin xv750
Post by: Getnjgywitit on Jan 02, 2013, 08:48:35
Just at a quick glance, but is that front tire going to hit the motor if you hit a good bump?  I'm diggin the inspiration you are pulling from so I'm looking forward to how this build turns out.
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 02, 2013, 09:33:07
yeah possibly.. i dont plan on running this front wheel, its actually damaged and the tire is punctured.  just tossed it on there so the bike is movable around the garage.. i plan on running the rear to front conversion, so the front will have the same dimensions as the current rear wheel. 
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 02, 2013, 12:37:31
im also thinking about taking some sheet metal and closing up the rear swingarm to give it that sport bike swingarm look as well.
Title: Re: trackin xv750
Post by: Finnigan on Jan 02, 2013, 18:54:49
saw this bike the other day and its exacting the inspirating im going after.. this bike is simply amazing in my opinion, and you can easily replicate this to an extent using the xv.  have a great new year!

whoa...do they make/sell brakes like that or is that a concept bike??
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 02, 2013, 19:25:29
thats a newer buell xb braking system.. pretty awesome.  this xr1 is a kit they will be selling for the buell xb, for the first time in my life i can say id like a buell to buy this kit. lol
Title: Re: trackin xv750
Post by: Finnigan on Jan 02, 2013, 20:16:58
Haha I don't blame you, looks incredible!
Title: Re: trackin xv750
Post by: rundown on Jan 02, 2013, 22:07:31
How much stiffness do you expect to lose by cutting the frame section out?  That would seem to put all twisting forces through the head of the bike, hope you plan on a rather leisurely riding style!
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 03, 2013, 01:09:13
I believe this modification was originally done by Sep Koch,  tons of people have done the mod and have experienced zero loss in structural strength.   And to answer your question,  yes this will be a leisure rider,  not sure if any virago has found its way out of that category of bike and riding style..  I'll leave the aggressive riding to the litre bikes I ride at the track.
Title: Re: trackin xv750
Post by: beachcomber on Jan 03, 2013, 06:23:51
I believe this modification was originally done by Sep Koch,  tons of people have done the mod and have experienced zero loss in structural strength.   And to answer your question,  yes this will be a leisure rider,  not sure if any virago has found its way out of that category of bike and riding style..  I'll leave the aggressive riding to the litre bikes I ride at the track.

This question is a perennial over on the Virago Tech forum !

Take a look at what Loek has done with his to STRENGTHEN the swingarm area. Also Pat Cowan of this parish who is no mean racer of old, subscribes to the "don't do it" brigade.

Not sure about the Virago, but on the TR1 [ same ? ] the footrest hangers are humungous, and tied in via the seat frame [ again substantial ] and then back to the main frame.

I've done a lot of work with cars using engines as stressed members - there's the stress they were designed to take - and then the stress WE subject them to !

Sepp has reported No problems whatsoever with this mod, and his bikes don't get an easy life !

When I originally started playing with TR1s I came up with a tubular footrest carrier, but after I fitted it I was a little concerned at the strength I'd lost by removing the OEM footrest hangers. Still working on it.

Eventually it comes down to personal choice, and riding style. Leisure riding is I suspect fine for this mod - I intend to ride the wheels off mine, but then there's always Sepp Koch !

(http://i1213.photobucket.com/albums/cc472/manfredvonheyda/Picture375.jpg)
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 03, 2013, 13:03:32
great post, very informative. thank you.. yeah your right when it simply comes down to riding style.  those stock footrest hangers have some thickness to them, not quite sure what im going to do about those just yet.
Title: Re: trackin xv750
Post by: beachcomber on Jan 04, 2013, 19:08:40
great post, very informative. thank you.. yeah your right when it simply comes down to riding style.  those stock footrest hangers have some thickness to them, not quite sure what im going to do about those just yet.

MJ - I started the final strip of the donor bike yesterday and had a good look at the area in question.

Without question the whole assembly is tied in one to the other. Footrests [ via engine cases ], to seat frame, to main frame.

The footrest hangers are far more substantial than required for just hanging the footrests - have you felt the weight of them ! They are bolted securely to the cases and then there is another substantial chunk - the seat support frame. This acts as a girdle around the cases [ via the footrest hangers ] and then is bolted directly back to the main frame. Take ANY one part out of the equation and it makes for a far less substantial structure.

In my very early days as a design engineer I was taught by a very respected tutor to exagerate ALL forces and stresses to see what the outcome could be - then dilute the findings down to the working level. A sort of safety factor if you like, but exagerating the design allowed you to easily see the "what ifs" and show up any marginal design.

The frame IS fuggin uggerly, no question. In my aplication - no problem as I will have side panels inkeeping with a 60's look. IF I were looking at an alternate for a modern take on a Cafe Racer [ and I did at one time] I think I'd go for a Duke style trellis frame.

I even went so far as to look at the frame on a spare BMW K1100 with relevant forks, 4 pot Brembos etc.

I'll take some pix of the area in question in the next few days - food for thought.

Would the cut down system fail ? Probably not. Would it put additional strain on the integrity of the engine cases - undoubtedly.
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 04, 2013, 22:47:16
oh yeah man no doubt they play a huge roll in the structural integrity of the bike.. just picking it up and moving it around the garage it shakes without them there.. i never planned on running the bike without them, was just thinking about making some custom mounts to replace them, seein on the throttle side it has like mounts for the battery etc.. idk we'll see. anyways, i did however pick up the rear wheel today for the front end, attached is a pic.  im thinking im going to pass on the rear to front conversion kit, as i really want to run a front drum.  keep those handlebars nice and clean without the master cylinder.  im sure with some proper mounts made etc it will work alright.  looks good though with a big front meaty tire on the new forks, will look awesome all black like planned.
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 07, 2013, 12:09:19
hey guys spent a little more time in the garage over the weekend and was toying around with ideas for the front drum brake setup.. ive attached a couple pictures, they are giving some ideas of the bar support to keep the drum in place..  which looks better?  i think the one with the bar would probably work better, because of the forward motion pulling against a bar, instead of a bolt going through the fork arm and into the drum mount like the second picture shows.. although the bolt setup would put my brake arm in a good spot to connect to the fork to make a cable setup.. any thoughts? 
Title: Re: trackin xv750
Post by: Tim on Jan 07, 2013, 12:16:10
The 2nd setup looks better, but a) is that fender mount on the fork strong enough for the cable mount (looks like it should be OK) and b) is the brake cam lever itself shorter in the 2nd setup?  Optical illusion?  You'd likely want a little more travel but that can be adjusted easily enough.
Title: Re: trackin xv750
Post by: teazer on Jan 07, 2013, 12:18:57
I must be missing something here.  The bike weighs like 1,000 pounds stock and the brakes weren't exactly MotoGP class and you want to go with a SLS drum?  I couldn't bring myself to do that on any bike that will be ridden.  A 250mm Fontana - well that would be a different discussion :-)

What I did on my last project was to fit an FZR master cylinder with integrated reservoir and black braided brake lines for a clean minimalist look.
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 07, 2013, 13:10:16
tim that fender mount is pretty bulky, appears that it would be able to handle the pressure of a cable mount, then again i have no research to support that statement other than visually... yeah must be an optical illusion cause its the same lever.

teazer im not building a race bike here, its got large front and rear wheels, its an absolute joke performance wise and i dont plan on beating the hell out of it..  i can understand your concern via the weight issue but this is definitely lighter now without all the garbage parts all over it.. idk like i said before i dont have any research to back this situation, ive seen everyone use the rear to front conversion kits and use the disc brakes, and i also am aware im taking a step backwards when it comes to performance, technology etc.. but i dont want a rotor, caliper, master cylinder on the front, im thinking the cleaner the better.  of couse if its not safe on the other hand, ill do what is necessary to make it safe.  thus, ive posted and appreciate your questions regarding the issue cause i respect your point of view! 
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 15, 2013, 00:18:36
Did some work tonight in the garage,  got the arm on the front fork ground down and flat,  drilled the hole and mocked up some washers to see how wide the bushing will need to be.   Turned out good, just needs to be ground down some more and make it look  nice.   Also took apart the drums and cleaned everything up in order to get good quick release..  Was all gummed up before I took it apart. 
Title: Re: trackin xv750
Post by: Bert Jan on Jan 15, 2013, 11:34:19
IMHO, i think that is not safe. I would not ride it with that setup. The fender brace was never designed to handle such power, torsion-wise. Therefor, i think it will break. Might not be at first ride, but it will.
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 15, 2013, 11:37:19
did you take a peek at the picture i made of the two setups?  any thoughts on that?  thats not a fender brace fyi, thats the caliper mount, im sure they did some testing to make sure that a caliper mount can handle some pretty large stress loads, agree?  pretty darn thick and rigid.
Title: Re: trackin xv750
Post by: DesmoBro on Jan 15, 2013, 11:47:40
it should hold up not sure if you'll stop as soon as you want to .....It does look like a fender mount because of the inverted forks
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 15, 2013, 11:52:32
yeah i can see how it looks like a fender mount, maybe should have put up a before and after.  hahah yeah if i wanted to stop on a dime id just buy the conversion kit for the caliper and be done with it all.. but just tyring to do something different here, while keeping the handlebars clean.  these bikes are 500lbs stock, thats 100lbs heavier than your honda small cc cb's with dual drum.. minus the weight ive removed (rear tail, exhaust which was surprisingly really heavy)  i think it will be good to brake.. this wont be a track bike by any means, but i do want it to be safe to ride.   
Title: Re: trackin xv750
Post by: teazer on Jan 15, 2013, 12:19:06
In reality, we can only guess that you will need more than a SLS drum to haul that beast up safely in traffic. You will know if it's adequate when you ride the thing and if not it can be changed. That's the nature of the beast and of building bikes. 

We get ideas and test them and if they don't work, we chalk it up to experience and change them.
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 15, 2013, 12:22:41
thanks teazer, puts things in perspective no doubt.. and yes, we will see. priority will be safety of course, so if it doesnt stop, ill make adjustments so it will stop. 
Title: Re: trackin xv750
Post by: Bert Jan on Jan 15, 2013, 13:33:51
It does not matter wether its a caliper mount or a fender mount i think. It was not designed to handle the amount of stress wich such a tiny drum will give on such a lump of metal. I totally agree with teazer and the chalk part, but for some reason i think the only thing chalked with this idea is the line around a dead body....

dont trial and error on brakes man.. if it snaps, your cable gets tangled up and everything is smashed to shit.
Title: Re: trackin xv750
Post by: Bert Jan on Jan 15, 2013, 13:37:46
one could argue about the fact that the caliper mount is very tough and such, but it gets its strengh from the 3d boxed shape wich you've taken away, it now is just a piece of alu and not the strong part as designed by manufacturer. If i would have this problem, i'd make a clamp around the fork leg with a boss on it out of steel or highgrade alu. It's not like you're fabbing a odometer onto it, Its your life.
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 15, 2013, 14:19:33
It does not matter wether its a caliper mount or a fender mount i think. It was not designed to handle the amount of stress wich such a tiny drum will give on such a lump of metal. I totally agree with teazer and the chalk part, but for some reason i think the only thing chalked with this idea is the line around a dead body....

dont trial and error on brakes man.. if it snaps, your cable gets tangled up and everything is smashed to shit.

it doesnt matter whether it was a caliper mount or a fender mount?  is that a serious statement?  you think the engineers put the same amount of thought into the fender mount as the caliper mount?  dumb.  the arm is exactly the same as before i touched it.. i just cut the end that wasnt needed off.  im not saying you're wrong, im not saying you arent making good points.. but dont say the arm for a caliper is the same as the fender mount, the fender mount is very small, thin and quite frankly, looks like a fender mount.  this is a large, thick arm, which im sure the engineers put a little more though process into when designing.
Title: Re: trackin xv750
Post by: Rich Ard on Jan 15, 2013, 20:14:42
Bert made a pretty good point - look at aluminium structures that are made to bear the kind of stress you're putting on that point. Aluminium does not take shear well.
Title: Re: trackin xv750
Post by: Bert Jan on Jan 15, 2013, 20:32:59
it doesnt matter whether it was a caliper mount or a fender mount?  is that a serious statement?  you think the engineers put the same amount of thought into the fender mount as the caliper mount?  dumb.  the arm is exactly the same as before i touched it.. i just cut the end that wasnt needed off.  im not saying you're wrong, im not saying you arent making good points.. but dont say the arm for a caliper is the same as the fender mount, the fender mount is very small, thin and quite frankly, looks like a fender mount.  this is a large, thick arm, which im sure the engineers put a little more though process into when designing.

Well, first of all, don't call me dumb cause i aint. its a language thing i guess. I meant to say that it's not a good idea to put the brake arm on either one of them (the fender mount or caliper mount) because they're both not designed for the force you're applying.

My point about the shape of the caliper mount is relevant. I'll try to explain. The caliper mount wants to bend when brakes are applied. The force you'll put on it will give the caliper mount completely different stress-points then the force they were originally designed for.
the more material you remove (between the stress points or not is irrelevant) the weaker the structure will get. PERIOD.

Think about a cardboard box with the lid folded close or open. The lid does not help to keep the groceries in, but it does help to keep the box strong when closed.

A 'V' piece of steel is way stronger than a flat piece for the same reason.
A hollow pipe is stronger than a massive one with the same diameter for the same reason.

IMHO it's not smart to remove material when the only argument to be made is 'i dont need it'. You might not, but the force you'll apply on it this way will negatively benefit from the removal of material.

I'm not going to lecture you any more because i'm no proffesor either, but i've got my basics in construction pretty dialed and i don't like your solution. Change it or ignore my worries, i really don't care. No hard feelings ;)

i've subscribed to see where it goes :)
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 15, 2013, 21:23:27
I wouldn't have called you dumb if you had specified better the first time.   Now that you clarified yourself I understand your concern,  and I knew about the different direction of force might be a risk factor with it installedw like this.  A before and after pic would have cleared things up for you about the cutting material off.   I took about an inch of length off the tip and just sanded it with a file to make sure it was flat on either side..  So I'm completely aware that the more I take off the less strength it has.  Thanks for following along,  I love the insight from fellow members.  Even if it's arguing.   
Title: Re: trackin xv750
Post by: Bert Jan on Jan 16, 2013, 12:48:46
Ok, cool.
But the million dollar question stays.. are you going to leave it like this?
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 16, 2013, 13:05:13
yeah for right now im gonna leave it this way.. i need to get the axle made first, then ill make the decision at a later date.. trust me ive been thinking about the things you've said, and a friend has taken a look who is an engineer has addressed the stress direction that the arm will have.. which will be different as you said before..  he thinks it will hold up strength wise, but has no comment on the stress direction.  maybe ill put some football gear on and drive in the grass and hammer on the brake a few times and see how it turns out.  HAH.
Title: Re: trackin xv750
Post by: Bert Jan on Jan 16, 2013, 13:10:54
maybe ill put some football gear on and drive in the grass and hammer on the brake a few times and see how it turns out.

And he's calling ME dumb... ;)

I think that a fairly cheap and important upgrade would be to replace the washers with a piece of tube with a thick wand. Best would be to make one on a lathe, so you have it as big as possible. Ideal would be to make it touch the whole of the mount, instead of just a little bit (like the washers do now). It will reduce the torsion tremendiously. Might also consider changing to m10 bolt maybe?
Title: Re: trackin xv750
Post by: Bert Jan on Jan 16, 2013, 13:14:54
On the pics, i spotted another hole, under the one you're using for the m8 bolt. Wouldn't it be possible to use that one? Because there's material between the hole and the leg (the hole you're using now is on an extended piece of alu wich could break.)
You could fab a piece of metal between the mount on the drum and the lower bolt hole, would be MUCH safer. If you make the red bar as thick as the washers you're using now you wont have to use any washers in between, making it even stronger.

Edit: Like this;

(http://i26.photobucket.com/albums/c131/bakkejan/Schermafbeelding2013-01-16om183107_zps45f15b21.png)

The red bar is a piece of steel, the blue part is a piece of steel welded on to the red piece in a 90* angle and has a small hole with threads in it, to accomodate the cablestopper/adjuster. The light green is your innie, dark green outie. The red piece can be made shorter/longer, this is just an idea. Shorter would be better by the way, would be nice to put the drum arm behind the fork leg. cleaner.

Even nicer would be, (but i cant see if that would work for you) to put the brake arm as horizontal as posible so that the cable is behind the fork leg ;)

Last piece of advice; measure twice, cut once.. Dont chop  (more fork) unless youre 100% sure its the way to go. Would be a bummer if you decided the drum does not brake enough and you want calipers again........
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 16, 2013, 13:21:10
haha!  yeah oh for sure, that was just for mock up purposes, going to definitely have a large diameter bushing made.. do you think the bushing should have a arm welded to it that runs down to the lower caliper bolt hole?  was doing some thinking that maybe that would help, bracing to the larger/thicker area down by the axle.. thoughts on that?  ive attached a really shitty picture to try and put it into perspective.. thanks bert for keeping this in check, i appreciate you following along.
Title: Re: trackin xv750
Post by: teazer on Jan 16, 2013, 13:30:19
The existing bracket is most likely to break because the forces act in a forward direction where the "arm/extension" piece is tall but not in the direction of the force. We're talking a simple aluminum casting and they don't have a whole lot of strength in bending.

The lower hole would be a much safer option.

I'm guessing that the lack of braking force will save that bracket and that it will take so long to slow down that a redesign will be on the books. :-)  The builder isn't dumb, he's just stubborn like the rest of us that get an idea in our heads and want to see where it goes.  He'll work it out.

His design criterion was to keep the front end looking clean and simple, so the question is how else can that be achieved?  Maybe a single large diameter disk or a rim mounted Buell arrangement or something from Berringer perhaps?  Maybe two smaller diameter disks and small body calipers?
Title: Re: trackin xv750
Post by: Bert Jan on Jan 16, 2013, 13:47:40
haha!  yeah oh for sure, that was just for mock up purposes, going to definitely have a large diameter bushing made.. do you think the bushing should have a arm welded to it that runs down to the lower caliper bolt hole?  was doing some thinking that maybe that would help, bracing to the larger/thicker area down by the axle.. thoughts on that?  ive attached a really shitty picture to try and put it into perspective.. thanks bert for keeping this in check, i appreciate you following along.

Well, that would be better, but, like teazer also said, the piece will prolly break. So, if you're going to use the lower hole with a bar (as i uploaded) no extra bushing is requird right? if not (its hard to see from the pics) a tube welded onto the bar will be better than a loose tube for sure. A thick enough bar would be golden/strongest. You could even drill speed holes in it or give it a mill-diet.
Title: Re: trackin xv750
Post by: Bert Jan on Jan 16, 2013, 13:53:31
The existing bracket is most likely to break because the forces act in a forward direction where the "arm/extension" piece is tall but not in the direction of the force. We're talking a simple aluminum casting and they don't have a whole lot of strength in bending.

The lower hole would be a much safer option.

I'm guessing that the lack of braking force will save that bracket and that it will take so long to slow down that a redesign will be on the books. :-)  The builder isn't dumb, he's just stubborn like the rest of us that get an idea in our heads and want to see where it goes.  He'll work it out.

His design criterion was to keep the front end looking clean and simple, so the question is how else can that be achieved?  Maybe a single large diameter disk or a rim mounted Buell arrangement or something from Berringer perhaps?  Maybe two smaller diameter disks and small body calipers?

That would be a single disk (one mount is gone and 1 is cleaner than 2) but the rims dont accept disks. would be a lot of work to find wheels that fit and have the right looks aswell, not undo-albe, but a lot of work...

I would try to score a wheel that looks kind of the same as the rear wheel and has a disk option. That's the closest i guess, next to riding with the drum.
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 16, 2013, 14:17:01
bert a guy on here makes a rear to front conversion that comes with adapters etc to run a front disk.  i dont have a problem buying that conversion, but yes like teazer said i had in my head of running dual drum and keeping things as clean as possible.. so we'll see.. i will make the bar and bushing, mount it up and go from there.  an also like teazer says, if the thing doesnt stop, well ill be goin back to the drawing board.
Title: Re: trackin xv750
Post by: Bert Jan on Jan 16, 2013, 14:19:25
Glad to hear you're taking the safe-route. Good call.
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 16, 2013, 14:53:52
right on.  thanks guys.
Title: Re: trackin xv750
Post by: Karlloss on Jan 17, 2013, 16:29:49
I've been following your build as I'm building a XV500, regarding the debate on your front drum conversion I would have gone with using the caliper mount for the anchor for the drum brake, the reason being that the caliper mount will take the rotational stress of the drum brake. Obviously the drum brake won't be as effective as twin discs but it will not be too far away from the standard single disc. The reason for this is the coefficient of friction and rotational forces. Drum brakes can be as effective and in some cases more so than disc brakes for many reasons. The rotational or turning forces from your drum brake will be no greater than the forces from the disc brake, this is due to fulcrums and levers. The anchor on the brake mounting plate is a lever in essence that reduces the actual force transmitted to the caliper mount and will not be too far away from the forces applied by disc brake calipers. .   
 
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 17, 2013, 16:51:45
yeah we have established most of the elements here.. but the big concern is the new angles of pressure applied, which will be different now that im bracing a drum with it.  essentially it could twist and break.. definitely going to do some bracing using the large caliper mount hole.  going to start with the crappy drawing i had made up.. steel brace running up to a bushing welded at the top, having two points bolted to help reduce the twist.
Title: Re: trackin xv750
Post by: Bert Jan on Jan 17, 2013, 22:04:06
I've been following your build as I'm building a XV500, regarding the debate on your front drum conversion I would have gone with using the caliper mount for the anchor for the drum brake, the reason being that the caliper mount will take the rotational stress of the drum brake. Obviously the drum brake won't be as effective as twin discs but it will not be too far away from the standard single disc. The reason for this is the coefficient of friction and rotational forces. Drum brakes can be as effective and in some cases more so than disc brakes for many reasons. The rotational or turning forces from your drum brake will be no greater than the forces from the disc brake, this is due to fulcrums and levers. The anchor on the brake mounting plate is a lever in essence that reduces the actual force transmitted to the caliper mount and will not be too far away from the forces applied by disc brake calipers. .   
 

I'm sorry? You talk alot but dont say much. I really dont understand what youre trying to say.
Title: Re: trackin xv750
Post by: Rich Ard on Jan 17, 2013, 22:13:18
I'm sorry? You talk alot but dont say much. I really dont understand what youre trying to say.

I think, Bert, that you are my favorite member of this forum.
Title: Re: trackin xv750
Post by: Bert Jan on Jan 18, 2013, 06:41:20
I think, Bert, that you are my favorite member of this forum.

Haha YES!
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 18, 2013, 10:29:33
haha oh man too funny.. bert i took some pictures last night with just a simple mock up to give you an idea of what im dealing with.. couple less washers, and a piece of thick flat stock running down to the lower caliper mount for added support.. essentially i can go even thicker with the flat stock like you were saying, which would eliminate even more washers,  and drill it out to shake some weight.  then once i have it mocked up well, get a piece of flat stock, weld on the upper bushing/spacer and see how we're doing at that point.  thoughts?  thanks
Title: Re: trackin xv750
Post by: Bert Jan on Jan 18, 2013, 14:26:53
Just use the lower hole. The upper one will break. Rest of the ideas are ok i think
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 18, 2013, 14:29:33
ok, so if i just use the lower hole.. can i do away with the upper access of aluminum?
Title: Re: trackin xv750
Post by: Bert Jan on Jan 18, 2013, 15:08:56
Yes. But dont mod the lower hole. Keep
1cm away from it. Show picture before cutting the top off. Show where you are going to cut with dotted sharpie market or sum
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 18, 2013, 15:09:51
right on. 
Title: Re: trackin xv750
Post by: Karlloss on Jan 18, 2013, 15:55:38
I'm sorry? You talk alot but dont say much. I really dont understand what youre trying to say.

Bert, yeah right. Point is the top mount will be fine!
Title: Re: trackin xv750
Post by: Karlloss on Jan 18, 2013, 16:04:15
yeah we have established most of the elements here.. but the big concern is the new angles of pressure applied, which will be different now that im bracing a drum with it.  essentially it could twist and break.. definitely going to do some bracing using the large caliper mount hole.  going to start with the crappy drawing i had made up.. steel brace running up to a bushing welded at the top, having two points bolted to help reduce the twist.

Obviously you've made your choice, but I can't see where the 'new angles of pressure' are coming from. The drum is only subject to same rotational forces as a disc brake would be.
Title: Re: trackin xv750
Post by: Rich Ard on Jan 18, 2013, 16:08:27
Obviously you've made your choice, but I can't see where the 'new angles of pressure' are coming from. The drum is only subject to same rotational forces as a disc brake would be.

That's not the case, though - using those mounting points introduces a new lever in between the drum stay and the caliper mount, at a sharp angle.
Title: Re: trackin xv750
Post by: Karlloss on Jan 18, 2013, 16:14:42
That's not the case, though - using those mounting points introduces a new lever in between the drum stay and the caliper mount, at a sharp angle.

I hear what you're saying but I don't agree, the distance between the drum anchor arm and the caliper mounting hole is minimal, I don't see a sharp angle in the pictures?  Look back at the locating lug on old drum brakes, nothing more than a small lug on the side of the fork tube. 

It's all irrelevant anyway as the decision is made.
Title: Re: trackin xv750
Post by: Bert Jan on Jan 18, 2013, 16:27:44
Bert, yeah right. Point is the top mount will be fine!

No its not. Do your homework instead of giving false, potentionaly hazardous information.

For instance, the calipers that used to be on those forks were held secure with 2 bolts and so, the force was divided over the 2 mount holes. I can name a dozen other reasons, but point is youre wrong.
Title: Re: trackin xv750
Post by: Karlloss on Jan 18, 2013, 16:45:45
No its not. Do your homework instead of giving false, potentionaly hazardous information.

For instance, the calipers that used to be on those forks were held secure with 2 bolts and so, the force was divided over the 2 mount holes. I can name a dozen other reasons, but point is youre wrong.

I did my homework thanks. Does it matter now as the decision is made. 

Your opinion is exactly that..yours....and you know what they say about opinions.

I guess my qualifications in mechanical engineering are potentionaly hazardous information  ;)
Title: Re: trackin xv750
Post by: Bert Jan on Jan 18, 2013, 17:14:47
I did my homework thanks. Does it matter now as the decision is made. 

Your opinion is exactly that..yours....and you know what they say about opinions.

I guess my qualifications in mechanical engineering are potentionaly hazardous information  ;)

So, where's your build thread? Qualifications aint shit, experience is what counts.
Title: Re: trackin xv750
Post by: CCRider on Jan 18, 2013, 19:22:31
A hollow pipe is stronger than a massive one with the same diameter for the same reason.
With all due respect, this is a myth that needs to be dispelled. For any given diameter of tube, the strength of the tube will increase as the wall thickness of the tube increases, all the way to the point where the tube becomes a solid rod.

Here's a simple online calculator that calculates the deflection and stress in square and round rods and tubes. Plug some numbers in and compare.
http://www.botlanta.org/converters/dale-calc/bending.html

CC
Title: Re: trackin xv750
Post by: Bert Jan on Jan 18, 2013, 19:29:50
With all due respect, this is a myth that needs to be dispelled. For any given diameter of tube, the strength of the tube will increase as the wall thickness of the tube increases, all the way to the point where the tube becomes a solid rod.

Here's a simple online calculator that calculates the deflection and stress in square and round rods and tubes. Plug some numbers in and compare.
http://www.botlanta.org/converters/dale-calc/bending.html

CC

Wow, nice one!  did not know that site. live and learn ;)
Title: Re: trackin xv750
Post by: notlob on Jan 18, 2013, 20:10:24
So, where's your build thread? Qualifications aint shit, experience is what counts.

Wow, nice one!  did not know that site. live and learn ;)

They probably teach that in college  ;D
Title: Re: trackin xv750
Post by: Finnigan on Jan 18, 2013, 20:21:11
BOOM!

"experience is what counts"...and a degree....or maybe just an online calculator for beam strength...

 ::) ::) ::) ::) ::)
Title: Re: trackin xv750
Post by: teazer on Jan 19, 2013, 01:50:43
Come on guys. Enough of the BS and smart ass humor. It's not helping. 

The point being made about a large diameter thin wall tube may not have been explained in perfect textbook English, but fact remains that for a given mass of material a thin wall large diameter steel tube is stronger than a smaller diameter tube with thicker walls of the same mass of the same material. 

Using that on line calculator, what deflection do you calculate for that application assuming the brakes actually work to slow the bike?  I'm too lazy to work out the actual forces, but the data I used came back as exceeding the material strength. If someone would like to work through the forces as it's designed now for say a 1g stop and add say 50% MOS then we'll all know if it's a problem or not.

This is not a place for uninformed opinions (this thread - at least this aspect of it) it's a place for caution and calculations and not bravado. IMHO.  The issue here is placing cast aluminum in a bending (cantilever) mode and it's not very good for that.

If someone would care to work through the data, I'd be very interested to see the answer so that the builder can make a decision based on facts and not our opinions.
Title: Re: trackin xv750
Post by: Swagger on Jan 19, 2013, 05:11:51
Don't make me pull this forum over and slap you, you argumentative fucking children.
The OE caliper bolts to that mount, ALL for force during braking is applied not between the mounting holes but below the mounting holes because the fucking caliper creates the other portion of the structure acting like a brace between them. That OE cast mount will withstand the huge force generated by the giant goddamned disc, there's no way in your girlfriend's personal hell that anemic boat anchor of a REAR drum will do anything to stress it.

Nothing.

It simply won't have the power. Not with fresh ferodo liners on the shoes much less the crap cruiser brake organic shit that's on it now. Simply won't. You monkey's are so busy comparing your internet winkies that you can't be bothered to see the truth. Grow the fuck up and quit clogging up the thread huh? You made your points individually and how you're just fucking for everyone else to watch. Seriously....pull your heads out.

Teazer and CC:
...give up, science, scientific method nor cognitive analysis are going to bring anything to bear here. Make some popcorn and enjoy the carnage.

MJPriceisright:
I applaud your free thinking but Teazer is right. That brake setup is only going to be good for parking lot speeds and stopping it from rolling down your driveway. Again, good on ya for thinking outside the box though this rear wheel boat anchor up front conversion is pretty goofy, nothing like taking one heavy wheel with marginal brakes off and replacing it with another....heavier one with even worse braking ability. It's just a terrible solution. I didn't bother to look at what SIZE rim you are using, if it's the 16" then you can add shite all for tires to the list of drawbacks. Sorry mate, don't mean to come off harsh toward you but you should reconsider.
Title: Re: trackin xv750
Post by: Karlloss on Jan 19, 2013, 05:18:54
So, where's your build thread? Qualifications aint shit, experience is what counts.

Oh you mean this thread http://www.dotheton.com/forum/index.php?topic=44804.0
Title: Re: trackin xv750
Post by: Karlloss on Jan 19, 2013, 05:42:54
Don't make me pull this forum over and slap you, you argumentative fucking children.......... You made your points individually and how you're just fucking for everyone else to watch. Seriously....pull your heads out.

Guilty as charged!   :)

Ok I joined this forum for inspiration not arguements............lets draw a line under it and move on!   :D
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 19, 2013, 11:55:44
dang was not expecting to read this as hungover as i am this morning.    anyways.. thanks for the concerns fellas.. im taking everything into consideration for sure.. swagger thanks i appreciate your honesty and your opinions.  just like you and teazer have said, not enough braking power is going to be the issue ill be running into.. but id like to try it first.. im almost there anyways.. ill try it, and if it doesnt work, then i have no issues going back and setting it up with the disc, or "inevitable"  as teazer would probably call it..  HAHA is like you and teazer are that doctor from house, dont want to just give me the answer, let me fuck it up a couple times and then ill figure it out, i love it. haha..  but seriously though, if its unsafe after some really slow short rides to test it out, i will change it.  this face is too valuable to risk a crash, have a great weekend guys!
Title: Re: trackin xv750
Post by: Swagger on Jan 19, 2013, 12:24:47
Frankly I think it'll be somewhat functional but very weak. Just don't get yourself killed ok?



this face is too valuable to risk a crash
Copy that, right? We're too pretty to die on anything but a college cheerleader
Title: Re: trackin xv750
Post by: Rich Ard on Jan 19, 2013, 14:01:55
Definitely a couple of national treasures at stake here
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 19, 2013, 16:49:03
Is that your deadliest catch crab fisherman getup?   Haha jk jk
Title: Re: trackin xv750
Post by: Swagger on Jan 19, 2013, 17:12:33
Hah....no, that's me in the shop after 6 or 7 Perfect Manhattans and 2 hours of sleep.

Rich Ard you look like quite a prize yourself there scrote.... ;)

Edit: fucking autocorrect is the bain of my existance. Should have read: ...yourself there SLICK.
Scrote? WTF over? But I'm leaving it because it made my girlfriend laugh.....
Title: Re: trackin xv750
Post by: Rich Ard on Jan 19, 2013, 17:47:00
All good. Now put some brakes on the damn thing! :)
Title: Re: trackin xv750
Post by: CCRider on Jan 19, 2013, 19:15:49
The point being made about a large diameter thin wall tube may not have been explained in perfect textbook English, but fact remains that for a given mass of material a thin wall large diameter steel tube is stronger than a smaller diameter tube with thicker walls of the same mass of the same material. 

Using that on line calculator, what deflection do you calculate for that application assuming the brakes actually work to slow the bike?  I'm too lazy to work out the actual forces, but the data I used came back as exceeding the material strength. If someone would like to work through the forces as it's designed now for say a 1g stop and add say 50% MOS then we'll all know if it's a problem or not.

My post took issue only with the statement "A hollow pipe is stronger than a massive one with the same diameter". I provided the online calculator to show the error in that. It's applicable to a simple beam and isn't relative to the rest of this discussion.

I don't even want to get involved in the brake mount argument.

CC
Title: Re: trackin xv750
Post by: teazer on Jan 20, 2013, 01:49:26
I understand that was what you were replying to, but I think the OP miss spoke and what hew really meant was what I tried to say a little more clearly. I think that sometimes we take post too literally.
Title: Re: trackin xv750
Post by: Bert Jan on Jan 20, 2013, 07:57:44
I understand that was what you were rep[lying to, but I think the OP miss spoke and what hew really meant was what I tried to say a little more clearly. I think that sometimes we take post too literally.

Jup, thanks for clearing that up. English is not my first language ;)
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 21, 2013, 15:53:06
thinking exhaust here, thoughts?  i wanna do it myself.. i do not however have access to a pipe bender although i do weld.  thoughts?  ive seent exhaust kits etc.. maybe just take a template of sort to a shop? 
Title: Re: trackin xv750
Post by: notlob on Jan 21, 2013, 17:40:53
Heres a few ideas.

(http://www.tr1.de/pictures/gallery/sepp_koch/sepp_1d.jpg)

(http://www.tr1.de/pictures/gallery/sepp_koch/sepp_1b.jpg)

(http://www.tr1.de/pictures/gallery/sepp_koch/sepp_3a.jpg)

(http://www.tr1.de/pictures/gallery/sepp_koch/sepp_2a.jpg)

(http://www.tr1.de/pictures/gallery/sepp_koch/sepp_2007_1.jpg)

(http://www.tr1.de/pictures/gallery/sepp_koch/sepp_2007_3.jpg)

(http://www.tr1.de/pictures/gallery/sepp_koch/hillwalk_weapon_2010.jpg)
Title: Re: trackin xv750
Post by: Bert Jan on Jan 21, 2013, 18:31:07
Whoa nice pipes! I found the easiest (and cheapest) way to make pipes is to get old pipes in same diameter and just cut em up. use the bends and straights where you need em. People discard old pipes a lot and since you'll have to powdercoat them anyways its no problem.
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 21, 2013, 18:35:56
who hell yeah that is awesome.. the last bike is my favorite i think.. just wasnt sure if i wanted to run a single muffler or stacked.  thanks for the pics though.

bert yeah was thinking about that too.. hmm now gonna have to start looking around for some old pipes!
Title: Re: trackin xv750
Post by: Bert Jan on Jan 21, 2013, 18:39:13
who hell yeah that is awesome.. the last bike is my favorite i think.. just wasnt sure if i wanted to run a single muffler or stacked.  thanks for the pics though.

bert yeah was thinking about that too.. hmm now gonna have to start looking around for some old pipes!

dont you still have the old ones? would make for a good start at the headers and such...
Title: Re: trackin xv750
Post by: Swagger on Jan 21, 2013, 18:44:18
MJPriceisright:  http://www.tr1.de/pages/gallery_sepp.php (http://www.tr1.de/pages/gallery_sepp.php)

If you haven't looked at his work you should, when it comes to this platform Sepp is pretty much topshelf.
Title: Re: trackin xv750
Post by: notlob on Jan 21, 2013, 19:09:49
Had the good fortune to see a couple of his (Sepp Koch) bikes close up and personal at a bike rally near Stuttgart a couple of years ago. First time I'd seen a TR1/XV cafed took me a while to realise what they were. They looked like they had dropped straight in from 50's.
Title: Re: trackin xv750
Post by: loekm on Jan 22, 2013, 09:58:16
Hi guys,

Exhaust is always a thing.... and for a V-twin it's even harder. Problem with the original exhaust is that it has 2 different diameters of tube front and back to get "same volume" of front an back header to the point where the pipes join together.

So in my opinion the original pipes are useless for making your own exhaust if you don't want stock exhaust and still make it work. Sepp's pipes use same diameter/length tube for the two headers, and are very nice :)

I made a my own system (Tr1 engine) allong this way to from stainless bends and tube (2 headers of 40x1,5mm bends and tube into 1 end of 50x1,5mm bends and tube). And I can tell you it's been a hell of a job to reach same volume/length given the small room available in my frame.

Your exhaust drawing looks a lot like Sepp's exhaust so try and copy as much as possible I would say ;) it's a nice design. The routing has already been proven by Sepp, and if you can weld it yourself it's even better!

Good luck!

Best regards,

Loek
Title: Re: trackin xv750
Post by: johnu on Jan 22, 2013, 10:26:47
Just buy pre-made bends then cut and weld as required.  You can get them here www.coneengineering.com.
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 22, 2013, 12:28:18
man much love from you guys, i really appreciate it.  sepp is a boss, those exhausts are unreal, i will probably mimick the two into one setup and then do my own thing for the mufflers.  thanks john, yeah ive seen that site before, seems like the ideal way to go about it from scratch.  bert i have the stock exhaust but its in pretty rough shape cause they bike was in an accident, so some of the piping has some dents in it.
Title: Re: trackin xv750
Post by: pacomotorstuff on Jan 22, 2013, 21:34:23
Loekm is right, pretty much hell getting the front and rear pipes the same length on these V-twins.
I used the front pipe from a Mac header, tucked it up 'til it hit the engine case 'cause it ground on the ground, used just the head pipe from the Mac on the rear cylinder and bought 90 bucks of mandrel-bent 1-3/4" bends and started measuring, cutting and welding.
I think I've got the pipes within 1/2 inch of each other as regards length - they're both 36" long (plus the megs) which is, I think, a good starting point for these motors.  I should have included a balance tube but it was a little beyond my fab skills.  I have a high pipe on the left and a low pipe on the right; some people think it looks weird but I just love it
If you're using mandrel-bent tubing, a cheap and cheerful way of checking whether or not your 2 pipes are the same length is to fill one with water, dump the water in a jug and fill the other pipe
(you of course have taken the pipes off the bike and plugged one end).  You'd be surprised how well it works...
The XV's are great bikes.
Pat
Title: Re: trackin xv750
Post by: MJPriceisright on Jan 23, 2013, 12:36:15
yeah definitely a lot of thought to go into this one for sure.. will be my first exhaust so i picked a pretty challenging bike to do it on it looks like.  yeah the stock exhaust rear cylinder pipe had snapped off where it runs down to the muffler, so i dont have much to work with when it comes to the stock exhaust.. we'll see, i like that website where i can buy some pre bent stainless tubing
Title: Re: trackin xv750
Post by: compoundcycles on Feb 08, 2013, 13:47:45
Nice work so far. I'm subscribed.
Title: Re: trackin xv750
Post by: beachcomber on Feb 09, 2013, 09:27:40
Hi guys,

Exhaust is always a thing.... and for a V-twin it's even harder. Problem with the original exhaust is that it has 2 different diameters of tube front and back to get "same volume" of front an back header to the point where the pipes join together.

So in my opinion the original pipes are useless for making your own exhaust if you don't want stock exhaust and still make it work. Sepp's pipes use same diameter/length tube for the two headers, and are very nice :)

I made a my own system (Tr1 engine) allong this way to from stainless bends and tube (2 headers of 40x1,5mm bends and tube into 1 end of 50x1,5mm bends and tube). And I can tell you it's been a hell of a job to reach same volume/length given the small room available in my frame.

Your exhaust drawing looks a lot like Sepp's exhaust so try and copy as much as possible I would say ;) it's a nice design. The routing has already been proven by Sepp, and if you can weld it yourself it's even better!

Good luck!

Best regards,

Loek

Loek,

Hate to throw this in - BUT ........... in the UK our TR1's / XV's have the same diameter pipes FRONT and back - the front pipe is double skinned [ so as to look more butch ?? ].

If you look closely you will see the smaller diameter pipe where it joins the rear section. I actually cut one through just to satisfy my curiosity. I will have my exhaust made with as large a diameter tube as possible - mainly for looks.

(http://i1213.photobucket.com/albums/cc472/manfredvonheyda/christmas2012014_zpsc2243095.jpg)

(http://i1213.photobucket.com/albums/cc472/manfredvonheyda/christmas2012015_zps05abcd54.jpg)
Title: Re: trackin xv750
Post by: loekm on Feb 10, 2013, 19:41:13
Hey Mr. Beachbomber,

No worries, if you say so, you must be right. I remembered the double wall exhaust at the front cylinder. But I thought it had a different diameter compared to the back. I can't check it anymore it was the first thing I threw at the pile of scrap when taking my Tr1 apart :) And that's some time ago.... In fact I don't know if I ever checked the diameters to be sure.

Whatever! Making a one-piece exhaust on these things is a lot of work. I watched a 4 into 1 system for a classic race bike being made this weekend and it looked somewhat easier....

I made my exhaust system out of 40 x 1,5mm stainless  front to back in one piece:

(https://lh6.googleusercontent.com/-9QZ7757Arao/UF3jY6D3YYI/AAAAAAAAAv0/469evwjmACc/s831/2012-09-22_17-51-23_113.jpg)

And I would never do it the same way again ;) Splitting it somewhere is a very good idea and makes it way easier to mount on the bike.... This is the material I have cheap and easy access to and it happens to be commonly used by others as well.

@MJPriceisright:
Just start your exhaust, don't hesitate.... it's worth it and very rewarding when finished ;D How cool it is when you can tell someone that you designed and built your own exhaust system :)

best regards,

Loek


 
Title: Re: trackin xv750
Post by: Bert Jan on Feb 11, 2013, 13:05:22
Hey Mr. Beachbomber,

No worries, if you say so, you must be right. I remembered the double wall exhaust at the front cylinder. But I thought it had a different diameter compared to the back. I can't check it anymore it was the first thing I threw at the pile of scrap when taking my Tr1 apart :) And that's some time ago.... In fact I don't know if I ever checked the diameters to be sure.

Whatever! Making a one-piece exhaust on these things is a lot of work. I watched a 4 into 1 system for a classic race bike being made this weekend and it looked somewhat easier....

I made my exhaust system out of 40 x 1,5mm stainless  front to back in one piece:

(https://lh6.googleusercontent.com/-9QZ7757Arao/UF3jY6D3YYI/AAAAAAAAAv0/469evwjmACc/s831/2012-09-22_17-51-23_113.jpg)

And I would never do it the same way again ;) Splitting it somewhere is a very good idea and makes it way easier to mount on the bike.... This is the material I have cheap and easy access to and it happens to be commonly used by others as well.

@MJPriceisright:
Just start your exhaust, don't hesitate.... it's worth it and very rewarding when finished ;D How cool it is when you can tell someone that you designed and built your own exhaust system :)

best regards,

Loek

sweet exhaust Loek! What would you ask for the amount of material including some bends? I could tig it myself :)
Title: Re: trackin xv750
Post by: MJPriceisright on Feb 11, 2013, 13:30:52
sweet exhaust Loek! What would you ask for the amount of material including some bends? I could tig it myself :)

i was literally going to ask the same question.. give me some figures if you can and lets see if you can hook bert and i up.  thanks man, love these exhaust posts
Title: Re: trackin xv750
Post by: beachcomber on Feb 11, 2013, 18:38:38
This is the style I'm going for - similar to the Vincent.

There will be a slip joint about where the V of the engine is to make for easy installation. Probably hidden with a small perforated "heat shield".

Mock up with pipe lagging and welding rod !!!!

(http://i1213.photobucket.com/albums/cc472/manfredvonheyda/ex.jpg)
Title: Re: trackin xv750
Post by: notlob on Feb 11, 2013, 20:44:51
Thats a hell of tail pipe there beachy.  ;D

The shape looks good nicely tucked in and flows with the motor shape.
Title: Re: trackin xv750
Post by: beachcomber on Feb 12, 2013, 06:42:10
Thats a hell of tail pipe there beachy.  ;D

The shape looks good nicely tucked in and flows with the motor shape.


Haaa,

yes the lagging just happened to be that length and we had to reinstall it on the water pipes we nicked it off after !

The exhaust will end about 4" after the last piece of tape on the lagging [ by footrest ] and I have a special Gold Star [ st. st. ] silencer that I had made last year to slip on the end.

The biggest problem is where the rear pipe exits the head and has to do a 180 degree bend. If push comes to shove, I'll put a notch in the "frame" at that point to give extra clearance.

(http://i1213.photobucket.com/albums/cc472/manfredvonheyda/SONAVON063_zpseb3e0c8a.jpg)
Title: Re: trackin xv750
Post by: loekm on Feb 13, 2013, 10:03:54
@Bert Jan:
@MJpriceisright:

Sorry guys, nothing for sale here... (no material and no design).It won't fit a standard frame anyway and I can't deliver the pipe and bends any cheaper than you guys can buy it yourself.... so start your own exhaust I would suggest ;)

Best regards,

Loek

PS. there is a build thread here on DTT of the whole bike....
Title: Re: trackin xv750
Post by: MJPriceisright on Feb 14, 2013, 15:58:13
no worries man, small update, picked up my handlebars and clamps.. pro taper fat bars (carmichael bends) and some clamps, will need a little modification but should work just fine.  will also be going black with these.. should have them next week sometime.
Title: Re: trackin xv750
Post by: MJPriceisright on Feb 19, 2013, 10:50:19
also updating with tires, gonna run these dual sport duro's.. meatiest tire i could find for the rim size.. 130/90/16.  got them through bike bandit, always love using those guys and the online live chat assistance, they have been great everytime ive purchased from them thus far.
Title: Re: trackin xv750
Post by: mikewerx on Feb 19, 2013, 11:51:21
That's one mean tire all right...
Title: Re: trackin xv750
Post by: MJPriceisright on Feb 19, 2013, 11:52:27
sucks this bike has 16" rims, not a lot of options for meaty tires, i would have gone more extreme but these are looking like the best option out there.
Title: Re: trackin xv750
Post by: Swagger on Feb 19, 2013, 15:27:54
Not too late to hunt up some 18" rims for your swap.....not to rain on your parade.
Title: Re: trackin xv750
Post by: MJPriceisright on Feb 19, 2013, 15:57:29
i wanna run wide rims, 18" swaps are narrower wheels, from what ive been told anyways, and from watching some other xv builds.  i do also like the looks of the smaller diameter wheels with big fat chunky tires on them.  nope wont rain on this parade, maybe snow cause im in the midwest.
Title: Re: trackin xv750
Post by: MJPriceisright on Feb 21, 2013, 23:23:27
Handlebars and clamps came in today,  was pretty excited to see Em.   Going to need a couple of risers made so the bars clear the forks,  but overall I like the look for sure.   Tires will be here Tuesday so ill be breaking down the rims and getting them painted ASAP.   
Title: Re: trackin xv750
Post by: Rich Ard on Feb 22, 2013, 00:05:01
MJ - did I understand correctly that the YZF600 non-reservoir shock was a straight swap?

Thanks!
Title: Re: trackin xv750
Post by: MJPriceisright on Feb 22, 2013, 00:30:08
Yeah slid right into the top and lower mount.   Length was identical to the factory air shock as well. 
Title: Re: trackin xv750
Post by: MJPriceisright on Feb 22, 2013, 09:33:04
do anybody know if i can go to a yamaha dealer and get a key for this gas cap?  i never had a key to begin with because the bike was wrecked but thought maybe if i went in there with the vin they could make me one?  ive got a new tank coming and without a cap and the one i currently have looks to be in perfect working order.  correct me if im wrong here
Title: Re: trackin xv750
Post by: danejurrous on Feb 22, 2013, 12:25:20
do anybody know if i can go to a yamaha dealer and get a key for this gas cap?  i never had a key to begin with because the bike was wrecked but thought maybe if i went in there with the vin they could make me one?  ive got a new tank coming and without a cap and the one i currently have looks to be in perfect working order.  correct me if im wrong here

The dealership I worked for was able to cut a new key as long as you were able to bring in some proof that you owned the vehicle. If they cannot cut it there they should be able to order it in for ya.
Title: Re: trackin xv750
Post by: MJPriceisright on Feb 22, 2013, 12:26:08
The dealership I worked for was able to cut a new key as long as you were able to bring in some proof that you owned the vehicle. If they cannot cut it there they should be able to order it in for ya.

most appreciated sir, thank you.
Title: Re: trackin xv750
Post by: Rich Ard on Feb 22, 2013, 12:31:32
Gas tank should not be specific to the ignition, any virago key will open it.
Title: Re: trackin xv750
Post by: MJPriceisright on Feb 22, 2013, 12:42:55
Gas tank should not be specific to the ignition, any virago key will open it.

shit well thats one more virago key than i have to try! ill see what i can muster up.
Title: Re: trackin xv750
Post by: Swagger on Feb 22, 2013, 12:43:58
Gas tank should not be specific to the ignition, any virago key will open it.

My 920r gas cap is matched to my ignition so I'd check that....
Title: Re: trackin xv750
Post by: Rich Ard on Feb 22, 2013, 12:50:09
Odd - the keys for my XV750 and XV920 will each open the other's gas cap.
Title: Re: trackin xv750
Post by: Swagger on Feb 22, 2013, 13:14:28
Wear maybe? I just went out to verify my statement and the key for my 920rh only opens it's cap, the 750mk tank I have on the shelf has it's own key that will only open it....? Weird haha...
Title: Re: trackin xv750
Post by: Rich Ard on Feb 22, 2013, 13:19:53
That's entirely possible, Swagger. Probably easier to pull the lock mechanism and shave the pins so a pocketknife would do the job :)
Title: Re: trackin xv750
Post by: Swagger on Feb 22, 2013, 14:58:51
HAHAHA!

Umm....LALALALALALALA....don't hear nuffin...LALALALALA!
Title: Re: trackin xv750
Post by: MJPriceisright on Feb 22, 2013, 15:45:44
someone name that tail!  found the info on the bike, but mentioned nothing of the rear section!
Title: Re: trackin xv750
Post by: Swagger on Feb 22, 2013, 16:13:56
looks one-off
Title: Re: trackin xv750
Post by: MJPriceisright on Feb 22, 2013, 16:15:25
looks one-off

facck was hoping you werent going to say that. haha
Title: Re: trackin xv750
Post by: beachcomber on Feb 22, 2013, 17:41:51
someone name that tail!  found the info on the bike, but mentioned nothing of the rear section!

Probably something from our German cousins ?

I DO have a pair of those wheels waiting to be blasted and powder coated and maybe make their way onto my BMW Fighter !!
Title: Re: trackin xv750
Post by: MJPriceisright on Feb 27, 2013, 19:16:27
got my handlebar risers made yesterday, turned out alright, nothing special there, but needed to be done.  will be painted black along with the clamps
Title: Re: trackin xv750
Post by: MJPriceisright on Feb 28, 2013, 12:42:04
Tires,  tubes,  ebay tank have arrived.   
Title: Re: trackin xv750
Post by: Rich Ard on Feb 28, 2013, 12:46:43
You should have capitalized "tires". Those are brutal!
Title: Re: trackin xv750
Post by: MJPriceisright on Feb 28, 2013, 13:00:23
Haha I love them!   I'm gonna be adventure riding all over the place!
Title: Re: trackin xv750
Post by: Rich Ard on Feb 28, 2013, 13:03:55
Haha I love them!   I'm gonna be adventure riding all over the place!

I am looking forward to the dueling Viragos photo shoot.
Title: Re: trackin xv750
Post by: MJPriceisright on Feb 28, 2013, 14:00:09
challenge accepted.
Title: Re: trackin xv750
Post by: pacomotorstuff on Mar 01, 2013, 09:26:32
OOH!
A dueling Viragos photo shoot!
Can anybody with a Virago enter?
Rules???
Let us know.

Pat.
Title: Re: trackin xv750
Post by: Rich Ard on Mar 01, 2013, 10:03:57
We happen to be about an hour away from one another - if you're in the area too, bring it on down!
Title: Re: trackin xv750
Post by: Finnigan on Mar 01, 2013, 12:19:05
the only rule is you have to have a half naked girl per bike
Title: Re: trackin xv750
Post by: Rich Ard on Mar 01, 2013, 12:21:17
Sounds good, I can come up with half a naked woman. Photog is going to need to have a strong stomach, though.
Title: Re: trackin xv750
Post by: MJPriceisright on Mar 01, 2013, 12:21:37
shit i was only half joking about the challenge.. now this daily rider is gonna have to be something worth looking at.. 
Title: Re: trackin xv750
Post by: MJPriceisright on Mar 01, 2013, 12:22:45
Sounds good, I can come up with half a naked woman. Photog is going to need to have a strong stomach, though.

yeah a quick trip to little darlings will suffice the situation!
Title: Re: trackin xv750
Post by: Finnigan on Mar 01, 2013, 13:18:01
rule withdrawn
Title: Re: trackin xv750
Post by: MJPriceisright on Mar 01, 2013, 13:21:46
rule withdrawn

hahaha
Title: Re: trackin xv750
Post by: MJPriceisright on Mar 01, 2013, 17:25:10
so on a serious note, i just got the bushings for the front axle to work in the forks, but i need to get the allballs conversion here soon.  so i was looking at the chart and it has a bunch of different width specs.. are they talking about the height of the inner bearing race?  the ID and OD are all the same.  i called them a couple weeks ago, and i believe thats what they were referring to, i was going to call again today to double check, and now i cant find their number anywhere on their website?  anybody wanna shed some light on this?
Title: Re: trackin xv750
Post by: ex119x on Mar 05, 2013, 17:37:54
Just to jump in here, I agree with many that the front sls brake will be inadequate to the point of being dangerous. However, I would look for the brake backing plate from a Yamaha that has a DLS brake that is the same diameter as the stock XV rear. I would look at an R5/DS7  or earlier YM1, YR1 etc. Maybe even the RD125 or RD200. Measure the ID of the rear drum and match it up with some Yamaha fronts.
Title: Re: trackin xv750
Post by: MJPriceisright on Mar 05, 2013, 17:53:07
Thanks for the input.   Any ideas where I could research these numbers?
Title: Re: trackin xv750
Post by: pacomotorstuff on Mar 05, 2013, 18:12:53
Hey if you guys keep pestering me, I'll go search in the store room for my XV920RH (chaindrive) rear wheel and offer up a YR1 backing plate to see if it works  - your homework is to find out whether the shaft drive and chaindrive have the same rear brake shoes and advise me.
The YDS3 and variants, YR1/2/3 all used the same front brake.  I'd have to check my RD200 brake but I think its a little narrower shoe but possibly the same dia.  Not the RD125.
The R5 had a left side front brake backing plate, so using it on the right hand side would give you a double trailing shoe front brake, which would surely rate up there with other dumb inventions like seeing eye pitbulls, etc.
The YDS3 / YR's used a 17mm axle, so some machining required?
I also have a partially completed DLS rear brake conversion for one of my 350's, using a front brake panel.  Some of these old bikes need all the brake they can get.
Neat project.
Regards,
Pat Cowan,
Vintage Motorcycle Fiberglass
Title: Re: trackin xv750
Post by: MJPriceisright on Mar 05, 2013, 18:29:37
bike bandit numbers are not matching up for the rear brake shoes.  any other ideas on DLS front drum specs somewhere?  should i look into trying to find a front brake setup and see if it will tuck inside my wheel?
Title: Re: trackin xv750
Post by: ex119x on Mar 05, 2013, 18:51:45
Get out your calipers and measure the ID of your current drum. Then, take a look at this and see if it helps.  http://www.eurospares.com/drumbrak.htm   SLS brake shoes are different than DLS shoes even though they may have the same diameter. The ends of the so either pivot on a fixed point so are rounded or have a pivot hole or they are flat on the end that is spread by the brake cam. DLS shoes are flat on both ends.
Title: Re: trackin xv750
Post by: beachcomber on Mar 06, 2013, 05:22:14
Hey if you guys keep pestering me, I'll go search in the store room for my XV920RH (chaindrive) rear wheel and offer up a YR1 backing plate to see if it works  - your homework is to find out whether the shaft drive and chaindrive have the same rear brake shoes and advise me.
The YDS3 and variants, YR1/2/3 all used the same front brake.  I'd have to check my RD200 brake but I think its a little narrower shoe but possibly the same dia.  Not the RD125.
The R5 had a left side front brake backing plate, so using it on the right hand side would give you a double trailing shoe front brake, which would surely rate up there with other dumb inventions like seeing eye pitbulls, etc.
The YDS3 / YR's used a 17mm axle, so some machining required?
I also have a partially completed DLS rear brake conversion for one of my 350's, using a front brake panel.  Some of these old bikes need all the brake they can get.
Neat project.
Regards,
Pat Cowan,
Vintage Motorcycle Fiberglass

Never mind the rear wheel Pat - get the bloody bike back out and on the stocks !!! I can't wait to see the finished article. especially with that Duke inspired tank [ Mojave, what Mojave ].
Title: Re: trackin xv750
Post by: MJPriceisright on Mar 06, 2013, 11:33:54
Get out your calipers and measure the ID of your current drum. Then, take a look at this and see if it helps.  http://www.eurospares.com/drumbrak.htm   SLS brake shoes are different than DLS shoes even though they may have the same diameter. The ends of the so either pivot on a fixed point so are rounded or have a pivot hole or they are flat on the end that is spread by the brake cam. DLS shoes are flat on both ends.

alright ill look into it.  thanks for the great reference page.
Title: Re: trackin xv750
Post by: MJPriceisright on Mar 13, 2013, 13:46:29
well, good news is my all balls conversion came in, should work fine.  the bad news is, i was removing the rear wheel, bumped into the bike and it fell over.. cause im an idiot.  dented the tank, cracked the clutch cover and bent one of the allen bolts, which thus also stripped the threads.. so now the allen bolt is removed, and all the oil drained from the bottom of the case cover.. sweeet.  two steps forward, one step back.  should have some time sunday to get the front forks and triples painted. 
Title: Re: trackin xv750
Post by: beachcomber on Mar 13, 2013, 17:56:26
well, good news is my all balls conversion came in, should work fine.  the bad news is, i was removing the rear wheel, bumped into the bike and it fell over.. cause im an idiot.  dented the tank, cracked the clutch cover and bent one of the allen bolts, which thus also stripped the threads.. so now the allen bolt is removed, and all the oil drained from the bottom of the case cover.. sweeet.  two steps forward, one step back.  should have some time sunday to get the front forks and triples painted. 

Ouch - that hurts ........................
Title: Re: trackin xv750
Post by: MJPriceisright on Mar 20, 2013, 11:48:46
ok time for a quick update, been super busy lately so I haven't had much time in the garage, but I did manage to get the wheels painted, and the front forks as well.  I used sandable primer on the wheels finishing with VHT epoxy wheel paint.  for the forks I just cleaned them up real nice and went straight to the VHT finish coat.  paint went on really nice, I was super impressed.  just need to get the lower triple cleaned up and painted, and finish the upper clamp, (drill holes for bar risers) and then throw some paint on it.  should have the bike as a roller next week.
Title: Re: trackin xv750
Post by: MJPriceisright on Mar 27, 2013, 22:08:08
got back in the garage tonight,  got the tires all mounted up.   went well,  couple scratches that will need a quick touch up
Title: Re: trackin xv750
Post by: MJPriceisright on Mar 29, 2013, 09:48:50
back in the shop tonight and wanted to get the all balls conversion figured out.  so the lower seat was not wide enough to come to the edge so we needed to take the top of the frame off and grind down a bit to get it to sit better.  the back side has a lip cause we didn't want to grind into the welds, but worked in our favor because the back portion of the gsxr lower triple tapers off so it didn't come in any contact.  turned out really good.  also got the rear wheel mounted back up.  will be one two wheels this weekend.
Title: Re: trackin xv750
Post by: MJPriceisright on Mar 30, 2013, 01:33:39
Made some great progress in the shop today.  Got the lower portion of my forks painted and installed on the bike, dropped off my axle to be trimmed down and have some threads put on, and got it back on two wheels.  Love the way it's looking.  Starting to make some templates for tail sections so we will see what comes of it.  Enjoy
Title: Re: trackin xv750
Post by: MJPriceisright on Mar 30, 2013, 01:35:41
Couple more
Title: Re: trackin xv750
Post by: Rich Ard on Mar 30, 2013, 22:31:18
bike is looking good, MJ. that seat is hilarious
Title: Re: trackin xv750
Post by: MJPriceisright on Mar 31, 2013, 21:08:17
thanks man was just messing with some foam to see what kind of shape I'm thinking for the tail section.   still not exactly sure what I'm going to do just yet. 
Title: Re: trackin xv750
Post by: MJPriceisright on Mar 31, 2013, 21:14:29
also did a little work yesterday and got the side cover off to diagnose the damage from the bike falling over.   was relieved to see it was just the cover cracked and no damage other than some stripped threads in the lower engine case.  got a new cover and gasket ordered,  should be in mid week.
Title: Re: trackin xv750
Post by: Cuba Libre on Apr 01, 2013, 10:51:25
Subscribed!

M.
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 01, 2013, 11:46:20
Hey Mr. Beachbomber,

No worries, if you say so, you must be right. I remembered the double wall exhaust at the front cylinder. But I thought it had a different diameter compared to the back. I can't check it anymore it was the first thing I threw at the pile of scrap when taking my Tr1 apart :) And that's some time ago.... In fact I don't know if I ever checked the diameters to be sure.

Whatever! Making a one-piece exhaust on these things is a lot of work. I watched a 4 into 1 system for a classic race bike being made this weekend and it looked somewhat easier....

I made my exhaust system out of 40 x 1,5mm stainless  front to back in one piece:

(https://lh6.googleusercontent.com/-9QZ7757Arao/UF3jY6D3YYI/AAAAAAAAAv0/469evwjmACc/s831/2012-09-22_17-51-23_113.jpg)

And I would never do it the same way again ;) Splitting it somewhere is a very good idea and makes it way easier to mount on the bike.... This is the material I have cheap and easy access to and it happens to be commonly used by others as well.

@MJPriceisright:
Just start your exhaust, don't hesitate.... it's worth it and very rewarding when finished ;D How cool it is when you can tell someone that you designed and built your own exhaust system :)

best regards,

Loek


coming back to the exhaust portion of the build now, starting to think about what id like to do.. so after chatting on this thread, it looks like whatever I do, wherever the two pipes come together, they need to be similar in length before the V comes together?  correct me if im wrong.  but what if I just run duals?  do the pipes also need to be similar in length?  also, how large of a diameter tubing can I run?  if I use the stock exhaust flanges and then just bump it out and run bigger diameter piping, will that be ok?  sorry if that's somewhat of a newb question, just trying to get an idea before I jump in and start mocking stuff up. 
Title: Re: trackin xv750
Post by: beachcomber on Apr 01, 2013, 18:10:51
I'm looking at running 45mm tubes for my system.

Having equal length primaries is desireable but not life threatening if you don't. My rear pipe will be about 6" longer - no biggie.

Small header flange into a large bore tube .............. Bill "Grumpy" Jenkins subscribed to this theory back in the late 70's. It was called " anti-reversion" and the theory was that it helped to phase out the reverse pulses. He saw improvements on te Dyno and in real life time at the strip. I used a similar system on my 27T Altered -  worked fine.

In conclusion -

45mm / 48mm OK for tube size.
Don't give yourself a headache by worrying about unequal length primaries.
Increase in tube dia from the head port could be seen as somewhat revolutionary - a la Grumpy Jenkins !
Title: Re: trackin xv750
Post by: Swagger on Apr 01, 2013, 22:04:12
Anyone here (with an XV) have a battery tray they aren't going ot use? Mine has 'walked off' and I need to get this thing on the road asap. Anyone?
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 01, 2013, 22:38:53
I do not unfortunately.  sorry swaggs
Title: Re: trackin xv750
Post by: Swagger on Apr 02, 2013, 15:23:09
No worries, I ended up getting impatient and buying one on ebay haha
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 02, 2013, 15:24:24
ebay,  what would we do without it.
Title: Re: trackin xv750
Post by: Rich Ard on Apr 02, 2013, 15:27:54
ebay,  what would we do without it.

Let me ask my wallet.

"killllll....meeeee....."
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 02, 2013, 15:29:37
Let me ask my wallet.

"killllll....meeeee....."

hahaha
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 02, 2013, 15:30:04
Let me ask my wallet.

"killllll....meeeee....."

richard i need a xv shift lever, got one?  swaggs?  anybody?
Title: Re: trackin xv750
Post by: Rich Ard on Apr 02, 2013, 15:32:12
I think I have a couple - will check tonight.
Title: Re: trackin xv750
Post by: Swagger on Apr 02, 2013, 18:39:04
Nothing to spare here, sorry pal
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 03, 2013, 11:27:56
found some cr250 mufflers on the cheap today and was thinking a little more about how I can run my exhaust.. this would be a dual undertail setup.  did a photoshop for the visual, let me know what you guys think.
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 03, 2013, 11:42:55
to add to this, how would I create a similar length dual exhaust with a setup like this?  my front primary pipe would be so much longer.  as far as ive learned so far, those pipes need to be "somewhat" similar in length in order for things to run smoothly and tuning etc.  someone shine the light on this!
Title: Re: trackin xv750
Post by: Rich Ard on Apr 03, 2013, 11:47:45
to add to this, how would I create a similar length dual exhaust with a setup like this?  my front primary pipe would be so much longer.  as far as ive learned so far, those pipes need to be "somewhat" similar in length in order for things to run smoothly and tuning etc.  someone shine the light on this!

check out knifemaker's thread - he used flexi foam to lay out his exhaust, you could try that. I've seen several v-twin exhausts in which the rear pipe comes forward around the cylinder and then back to lengthen the pipe a bit.

totally forgot to look for a shift lever for you last night, sorry - i'll get on that tonight.
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 03, 2013, 14:41:25
anybody diggin this more?  friends around town have been liking the lower exit a bit more, would be simpler for sure than the undertail.  im kind of partial to the undertail, although i wouldnt want to cover up the exposed rear shock focal point.. so we'll see, picking up some mufflers this afternoon.  thanks richard, hoping you have a shift lever for me
Title: Re: trackin xv750
Post by: Rich Ard on Apr 03, 2013, 14:47:03
Simpler and easier to run similar-length pipes. Would you run the rear cylinder exhaust on the LH side of the bike?
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 03, 2013, 15:03:29
yeah that would be my plan of attack, have it exiting on both sides.. maybe bring the pipes close together underneath the bike and then angle em out, just so the whole muffler isnt out and exposed..
Title: Re: trackin xv750
Post by: danejurrous on Apr 03, 2013, 15:19:09
For ease of fabrication and making both equal length I like the second mockup, for pure aesthetics I like the undertail.
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 03, 2013, 15:23:03
For ease of fabrication and making both equal length I like the second mockup, for pure aesthetics I like the undertail.

word.

yeah just getting that backside cylinder pipe long enough and out at the symmetric angle of the front cylinder would be a head scratcher.. but doable im sure.. im thinking that will most likely be the plan of action. 
Title: Re: trackin xv750
Post by: Swagger on Apr 03, 2013, 15:25:54
You lost a goodly bit of lean angle on the right side with those forks so running your front pipe in the OE position is going to make it really obvious....you'll ground it out first time into a medium speed corner. I'd run that pipe along the side of the engine and dip the rear one thry the swing arm and back up to put the other muffler on the other side. That would allow at least some corner clearance to be saved......just a thought.
Title: Re: trackin xv750
Post by: Rich Ard on Apr 03, 2013, 15:28:42
You lost a goodly bit of lean angle on the right side with those forks so running your front pipe in the OE position is going to make it really obvious....you'll ground it out first time into a medium speed corner. I'd run that pipe along the side of the engine and dip the rear one thry the swing arm and back up to put the other muffler on the other side. That would allow at least some corner clearance to be saved......just a thought.

Perhaps you might want to take a look at those tires again...the only way this beast is going to lean is if MJ forgets the kickstand again :) :) :)
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 03, 2013, 15:29:47
You lost a goodly bit of lean angle on the right side with those forks so running your front pipe in the OE position is going to make it really obvious....you'll ground it out first time into a medium speed corner. I'd run that pipe along the side of the engine and dip the rear one thry the swing arm and back up to put the other muffler on the other side. That would allow at least some corner clearance to be saved......just a thought.

yeah for sure something to think about, so you like the lower mounted setup as well?  i really need to get the side moutns for the rearsets on and see where things can be ran.. have any of you replaced those bulky mounts with some custom made setups?  i see lots of guys just mounting rearsets to the furthest point, but i hate the way they look on the bike.  i know how structurally important they are, but could you make custom brackets out of aluminum, or would you reccommend steel if it were a slimmer profile setup?
Title: Re: trackin xv750
Post by: Swagger on Apr 03, 2013, 15:31:24
Not exactly....the front pipe in your lower setup will ground out in corners as it's drawn. I'd run it over the top of the case.....
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 03, 2013, 15:31:46
Perhaps you might want to take a look at those tires again...the only way this beast is going to lean is if MJ forgets the kickstand again :) :) :)

haha fucker, touche'

i know this thing wont handle well with those tires, but this is a daily A to B ride, nothing more.  the cb has all the performace aspects i really enjoy when beating the hell out of a bike.  this thing i want to ride right off the road into the median just because i can! 
Title: Re: trackin xv750
Post by: Rich Ard on Apr 03, 2013, 15:34:13
Hey, at the end of the day, it's a virago - if it starts, you're golden. Glad you're a good sport - and I can see what Swagger means about the front pipe.
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 03, 2013, 15:35:22
Hey, at the end of the day, it's a virago - if it starts, you're golden. Glad you're a good sport - and I can see what Swagger means about the front pipe.

hey maybe when i drag knee and slip into the woods, the dual sport tires might keep me upright! hahah prolly not, worth a shot though.
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 03, 2013, 18:08:27
what are your thoughts on the rearset brackets swaggg?
Title: Re: trackin xv750
Post by: Swagger on Apr 03, 2013, 20:08:48
It kinda depends on the seating arrangement you come up with; generally speaking, to be ridable your pegs need to be more or less under your sack......being the center of gravity, and high enough not to drag but low enough that you're not sitting on your heals.

On mine, being the RH it's already got "factory rearsets" but that really puts them in a standard position...albeit rear-set from a regular virago. However I need my pegs up 2 and back three. My plan is to machine new plates to suit, bolting to the engine and in my case also providing an extra anchor point for the CBR swingarm I have for this silly thing.

You might check fleabay for some RH peg mounts($$$) to start with though I'd be happy to machine some for you too...
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 04, 2013, 15:13:03
It kinda depends on the seating arrangement you come up with; generally speaking, to be ridable your pegs need to be more or less under your sack......being the center of gravity, and high enough not to drag but low enough that you're not sitting on your heals.

On mine, being the RH it's already got "factory rearsets" but that really puts them in a standard position...albeit rear-set from a regular virago. However I need my pegs up 2 and back three. My plan is to machine new plates to suit, bolting to the engine and in my case also providing an extra anchor point for the CBR swingarm I have for this silly thing.

You might check fleabay for some RH peg mounts($$$) to start with though I'd be happy to machine some for you too...

hmm thank you for the offer, i might take you up on that when the time arrives.. gonna be hauling the bike across michigan this weekend and dropping it off at ken hosfords to have the rear tail made,  should turn out awesome, spoke with him yesterday, great guy, really knows his stuff!
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 05, 2013, 13:21:53
all loaded up and ready to roll over to Dexter, MI to see ken hosford.  going to put our minds together and get a subframe and tail section made for the xv.  also got the handlebars mocked up and in place, for moving the bike around etc.
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 08, 2013, 10:58:31
well I made it over to Dexter, MI to meet ken hosford at his home to go over the custom tail hes going to be building for the XV.. ken is a great guy, we spent a few hours going over some details etc. and he really knows his stuff.  virtually nothing he cant do in the shop he has.  and yesterday evening he already has made some good progress on the tail!  guys moves quick which is awesome.. attached some pics below.
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 08, 2013, 10:59:40
updated pics of the tail
Title: Re: trackin xv750
Post by: Rich Ard on Apr 08, 2013, 11:05:04
Man, that guy just does not fuck around! Maybe I'm the one who'd better hurry up and finish. :)
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 08, 2013, 11:12:56
yeah he really doesn't, he told me initially that he would get on it in a couple weeks tops, but then the very next day had an email with some updates and how I thought it was coming along.. one rule he has is if the bike is there for a year, it becomes his property! hah I laughed, obviously I want the bike back within the months end.
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 08, 2013, 17:06:05
so im thinking maybe the side "wings" of the tail need to flow further back until the rear of the tail starts to curve around?  thoughts?  i put a picture with some arrows to show.. what does everyone think?
Title: Re: trackin xv750
Post by: Rich Ard on Apr 08, 2013, 17:21:25
Agreed - and maybe not so wide...
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 08, 2013, 17:24:18
Agreed - and maybe not so wide...

im cool with the width, but the length should be longer i think..
Title: Re: trackin xv750
Post by: danejurrous on Apr 08, 2013, 19:34:41
im cool with the width, but the length should be longer i think..

Yeah I would bring them back a little further, looks a bit off otherwise.
Title: Re: trackin xv750
Post by: teazer on Apr 08, 2013, 23:02:51
That's interesting and different.  I agree that it would look better if the side wings continued further to blend in - very MotoGp inspired style element. Cool.   
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 09, 2013, 11:51:50
That's interesting and different.  I agree that it would look better if the side wings continued further to blend in - very MotoGp inspired style element. Cool.

thanks teazer, having a little trouble lost in translation over to ken about how it should look, forwarded a few pictures i revised so hopefully ill hear back.  or i wouldnt mind even taking a trip back and spending the afternoon there watching/helping/learning from him.
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 09, 2013, 12:00:06
another little example of what i am thinking would look better..
Title: Re: trackin xv750
Post by: Rich Ard on Apr 09, 2013, 12:04:32
From there the width looks right - and i agree with you about it flowing smoothly into the back.
Title: Re: trackin xv750
Post by: JiveTalkinRobot on Apr 09, 2013, 13:22:46
how would you do those yellow lines?
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 09, 2013, 13:23:57
how would you do those yellow lines?

huh?
Title: Re: trackin xv750
Post by: Kleebs on Apr 09, 2013, 15:44:50
Forget him.  He's just talking jive
Title: Re: trackin xv750
Post by: Rich Ard on Apr 09, 2013, 15:46:11
I'm too lazy to post the scene from "Airplane!" but if I weren't, this is where it would be
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 09, 2013, 15:55:03
I'm too lazy to post the scene from "Airplane!" but if I weren't, this is where it would be

pfffff haha
Title: Re: trackin xv750
Post by: dirtyhands on Apr 09, 2013, 16:15:27
Here, allow me…

http://youtu.be/fXSLcYQHqFQ
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 09, 2013, 16:36:11
nailed it.
Title: Re: trackin xv750
Post by: Maritime on Apr 09, 2013, 16:41:52
HA, so MJ are you going to integrate some signals into the pods on the sides?
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 09, 2013, 16:49:38
HA, so MJ are you going to integrate some signals into the pods on the sides?

im not exactly sure if ill be running turn signals.. really trying to keep this thing clean and smooth with the "minimalist" look here.. i will obviously be running some type of drop tag tail light, or possibly integrating some LEDS into the tail section.  ive always used hand signals while riding, just something i was brought up on so i rarely used signals anyways.
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 13, 2013, 13:02:10
now the tail looks and flows right.
Title: Re: trackin xv750
Post by: corncountrycustoms on Apr 13, 2013, 13:23:57
BEAUTY!
Title: Re: trackin xv750
Post by: guernz on Apr 13, 2013, 13:38:11
looks wild
Title: Re: trackin xv750
Post by: Rich Ard on Apr 13, 2013, 14:58:08
Looks sick. Way to go Ken Hosford!
Title: Re: trackin xv750
Post by: JAGspeed on Apr 18, 2013, 01:20:12
I was checking out your builds after you posted a comment on my Tracker build.  Really great work. I am a fan of this XV because I have a XV920R that I started, but it got put on hold a bit to do the XS. I will start a thread on my XV soon. Some good inspiration here to keep both my projects going at once. Look forward to seeing your finished creations.
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 18, 2013, 11:35:22
I was checking out your builds after you posted a comment on my Tracker build.  Really great work. I am a fan of this XV because I have a XV920R that I started, but it got put on hold a bit to do the XS. I will start a thread on my XV soon. Some good inspiration here to keep both my projects going at once. Look forward to seeing your finished creations.

thanks man, should have some updates here in a week or so when i roll out to pick up the bike. 
Title: Re: trackin xv750
Post by: Rich Ard on Apr 19, 2013, 10:28:14
Ha! Wrong thread, but it looks good anyway.
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 19, 2013, 10:34:03
Ha! Wrong thread, but it looks good anyway.

im an idiot.
Title: Re: trackin xv750
Post by: Rich Ard on Apr 19, 2013, 10:38:43
you may be an idiot but i don't have to true any wheels as you've done it already, so it looks *twice* as good. Where'd you take it?
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 19, 2013, 10:42:45
this guy here in town where I had some pipes bent up for my 450.. he actually texted me looking for a front cb550 wheel.. well I didn't have the wheel but I had some parts that could assemble one, so we just bartered.  he did a good job, didn't scratch the nipples on the wheels so I was happy about that.
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 28, 2013, 23:46:42
one hell of an update!  well i finally got back out to ken hosfords this weekend to pick up the ole xv, was pretty excited to see how it finished up.. got there relatively early and spent the afternoon making/welding in the rear subframe, braces, supports, and the tank riser hoop.. i must say, i am absolutely content with the way things came together.  i love the tail, and the subframe is really simplistic and works perfect.  pictures below.  now i just need exhaust and a headlight! 
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 28, 2013, 23:48:12
and finally pics of the tail!!!!   ken is a super guy, really knows his metal working, and i recommend him for any job you might have. 
Title: Re: trackin xv750
Post by: Rich Ard on Apr 28, 2013, 23:50:05
"absolutely content" is the weakest compliment i have ever heard. Anyway having seen it I can say that it is breathtakingly sufficient.

(seriously though it is very very cool)
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 28, 2013, 23:59:34
"absolutely content" is the weakest compliment i have ever heard. Anyway having seen it I can say that it is breathtakingly sufficient.

(seriously though it is very very cool)


haha yeah yeah.. i am very happy with the way it came together! 
Title: Re: trackin xv750
Post by: Maritime on Apr 29, 2013, 08:43:24
Nice seat, I'd ride it.
Title: Re: trackin xv750
Post by: Kleebs on Apr 29, 2013, 11:35:21
This thing just looks mean
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 29, 2013, 11:37:24
This thing just looks mean

indeed it does... cant wait to get the exhaust started
Title: Re: trackin xv750
Post by: DesmoBro on Apr 29, 2013, 17:06:01
....Vaguely reminiscent of scissors ....
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 29, 2013, 17:07:33
....Vaguely reminiscent of scissors ....

I have no clue what that means
Title: Re: trackin xv750
Post by: DesmoBro on Apr 29, 2013, 17:09:09
as soon as i saw it i thought of scissors ....must be the angles...just reminds me of scissors for whatever reason
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 29, 2013, 17:10:57
as soon as i saw it i thought of scissors ....must be the angles...just reminds me of scissors for whatever reason

oh oh I thought you meant it was reminiscent of someone called "scisscors" bike.. didn't know you actually meant scissors.. yeah I can totally see that.
Title: Re: trackin xv750
Post by: DesmoBro on Apr 29, 2013, 17:14:27
is the seat angle comfortable?  or does it make you slide forward?
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 29, 2013, 17:21:21
is the seat angle comfortable?  or does it make you slide forward?


well from the minimal amount ive actually sat on it so far.. just to push it around the garage and what not, It feels pretty comfortable actually.. the high rise bars keep you pushed back and in the seat well... has a real dirt bike feel to it almost, and then you look down and see the v-twin sitting under there.. makes me want to do wheelies with it.. haha
Title: Re: trackin xv750
Post by: DesmoBro on Apr 29, 2013, 18:09:20
Awesome dude Tires def give it that BEEFED up touch and that twin will absolutely rip ....you thinkin of going traditional cafe headlight....or street fighter....or front fairing?
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 29, 2013, 18:19:10
well I really wanted to run a dual projector, vertically and offset to one side.. then I thought it would be cool to do it like the bott xr1, and run a number on the front of the plate, something ending with an "8" like "38".. then cutting the holes out in the 8 so the projectors shine through, but keeping the cutouts or making some lens covers so during the day I could snap them back on and it would just look like a number plate, but then in the evening, I could pop them off and there are the bulbs.. kind of like the hella covers or whatever... just not sure.  that all seems so similar to the bott xr1 and I don't want to be "that guy" I suppose... IDK either way should look pretty awesome. 
Title: Re: trackin xv750
Post by: DesmoBro on Apr 29, 2013, 18:30:21
The 8 idea seems bad ass.... should be the easy part 2
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 29, 2013, 18:34:34
The 8 idea seems bad ass.... should be the easy part 2

for sure... maybe ill just have to be that guy.. will look similar, but different in its own trashier/less CNC'd parts kind of way.  haha
Title: Re: trackin xv750
Post by: DesmoBro on Apr 29, 2013, 18:53:15
nothing wrong with a DIY custom headlight....and the XV is probably faster than that harley
Title: Re: trackin xv750
Post by: MJPriceisright on Apr 29, 2013, 18:59:43
nothing wrong with a DIY custom headlight....and the XV is probably faster than that harley

I don't care if its faster, I wanna see him go from the pavement to the dirt and hang with me! hahah
Title: Re: trackin xv750
Post by: Rich Ard on May 01, 2013, 13:21:52
Exhaust idea:

(http://i1143.photobucket.com/albums/n625/kruis1/bhuitl5.jpg)

From this thread (but don't mount your rear shock to the cylinder head like he did):

http://www.chopcult.com/forum/showthread.php?t=21023
Title: Re: trackin xv750
Post by: MJPriceisright on May 01, 2013, 13:31:07
looks good for sure, but im trying to decide whether or not to bring the two into one, or just run a simple straight pipe setup out the brake side... im open to all opinions.. keeping in mind, this thing is mean looking, and should sound mean as well. haha. 
Title: Re: trackin xv750
Post by: Rich Ard on May 01, 2013, 14:36:36
I do have the MAC pipes and they're kind of farty. Don't know that I would suggest that route.
Title: Re: trackin xv750
Post by: MJPriceisright on May 01, 2013, 14:41:53
id like to be less farty, and a little more throaty if possible... lol good for a mental image and a laugh though.
Title: Re: trackin xv750
Post by: Swagger on May 01, 2013, 16:03:26
Niche Cycle on Ebay sells a decent 2-1 for these bikes that works pretty well and sounds meaty......
Title: Re: trackin xv750
Post by: MJPriceisright on May 01, 2013, 16:06:39
link?  im not seeing anything.  oops nevermind yes i am seeing them now.. a little too straight for me, too cruiser "ish"
Title: Re: trackin xv750
Post by: Swagger on May 02, 2013, 16:14:15
Check on ebay, that's where I have seen it most. I'm at work or I would dig for you.....
Title: Re: trackin xv750
Post by: MJPriceisright on May 07, 2013, 12:25:43
nothing big to report, last night I did manage to clean up the replacement side cover and painted it black to match the motor, as well as picked up a heli-coil kit to fix the stripped threads in the bottom of the case from when the bike fell over.  Thursday rich (Richard) is heading up to town and we are going to wire the bike up, pretty excited about that.  still searching locally for some bends to do the exhaust, hoping to hear back from a shop today. 
Title: Re: trackin xv750
Post by: MJPriceisright on May 07, 2013, 12:50:11
oh I did however fail to mention I found this little guy on the magnet.... although I did a pretty thorough inspection and didn't come across any broken teeth.. there was some visible gasket maker so im wondering if the side case was cracked open and had a repair in the past.. all the gears looked to be in good shape with no mentionable wear on any gears.
Title: Re: trackin xv750
Post by: Rich Ard on May 07, 2013, 12:55:56
Check the timing gear behind the flywheel rotor - there are two gears, one fat, one skinny (the skinnier in front). It looks to me like a tooth from the skinnier of the two...which may not be a big deal, given that the two are pretty well secure against one another.
Title: Re: trackin xv750
Post by: MJPriceisright on May 07, 2013, 12:58:01
Check the timing gear behind the flywheel rotor - there are two gears, one fat, one skinny (the skinnier in front). It looks to me like a tooth from the skinnier of the two...which may not be a big deal, given that the two are pretty well secure against one another.

will do.
Title: Re: trackin xv750
Post by: MJPriceisright on May 07, 2013, 20:36:36
so after some tackling with rewiring the stator,  I'm trying to get the cover back on and it seems to be hitting something on the backside...  any suggestions?   am I forgetting something?
Title: Re: trackin xv750
Post by: MJPriceisright on May 08, 2013, 11:44:49
well if this bike had a face I would have surely punched it last night... got the wiring re worked and the side cover back on, the starter clutch wasn't lining up correctly (thanks Richard), then the clutch mechanism in the ebay side cover was missing the ball bearings and I didn't even notice, so had to tear the shit back off, re-use the old on which was fine, and got her all sealed up.  heli-coil thread repair kit went good as well.  hopefully it wont leak like a HD when I put oil in it... hopefully.
Title: Re: trackin xv750
Post by: Rich Ard on May 08, 2013, 11:48:31
Glad you got it all sorted out. See you in a couple of nights and we'll stick some wires on that thang.
Title: Re: trackin xv750
Post by: MJPriceisright on May 08, 2013, 14:08:51
Glad you got it all sorted out. See you in a couple of nights and we'll stick some wires on that thang.

wordddd
Title: Re: trackin xv750
Post by: MJPriceisright on May 09, 2013, 14:46:30
actually sat on the bike to see how it felt, posting a picture of it.. i guess going back i could have made the length of the seat a little longer, but it does feel very comfortable being up higher and with the raised handlebars.. a real dirt bike feel, only a thousand pounds heavier.
Title: Re: trackin xv750
Post by: verboten1 on May 09, 2013, 15:05:59
Looking good man, we will have a whole Michigan virago army soon!
Title: Re: trackin xv750
Post by: MJPriceisright on May 09, 2013, 15:08:17
Looking good man, we will have a whole Michigan virago army soon!

haha absolutely.  two in my shop right now, rich is on his way up to gr tonight to help wire mine up.. just a mess of XVs
Title: Re: trackin xv750
Post by: Rich Ard on May 09, 2013, 15:12:56
actually sat on the bike to see how it felt, posting a picture of it.. i guess going back i could have made the length of the seat a little longer, but it does feel very comfortable being up higher and with the raised handlebars.. a real dirt bike feel, only a thousand pounds heavier.

raise the eyebrow a little bit more
Title: Re: trackin xv750
Post by: MJPriceisright on May 09, 2013, 15:14:36
its the botox, it cant go any lower.
Title: Re: trackin xv750
Post by: MJPriceisright on May 09, 2013, 15:41:47
this is it, done thinking about exhaust. 
Title: Re: trackin xv750
Post by: Maritime on May 09, 2013, 15:44:01
I Like that, simple and fits the look of the bike well.

Edit :

The only suggstion may be to incorporate a 2-1 collector at the point the 2 pipes meet for better flow???
Title: Re: trackin xv750
Post by: MJPriceisright on May 09, 2013, 16:00:47
I Like that, simple and fits the look of the bike well.

Edit :

The only suggstion may be to incorporate a 2-1 collector at the point the 2 pipes meet for better flow???

so your saying place the collector at a spot where the pipes are running side by side and parallel?
Title: Re: trackin xv750
Post by: beachcomber on May 10, 2013, 06:41:05
Personally I think a collector will look too "clunky". You might be talking 1/2 - 1 BHP loss [ doubt it ] with the photoshop system, but it looks "right".
Title: Re: trackin xv750
Post by: MJPriceisright on May 10, 2013, 09:11:59
Personally I think a collector will look too "clunky". You might be talking 1/2 - 1 BHP loss [ doubt it ] with the photoshop system, but it looks "right".

im hoping when the rounded rear cylinder pipe comes down, the new pipe coming from the front head will be behind it when the meet, so from the side you only see half of the collector as its running parallel with the ground.  yeah im not too worried about the hp +/- i just want a good "flowing" setup that works and sounds "good enough for who its for"
Title: Re: trackin xv750
Post by: Maritime on May 10, 2013, 10:44:09
yep, I was just thinking if the curved pipe came down and under the motor and  the factory straight one came past at the same height the collector could catch and merge the 2 at a straight shot into the one pipe and it would be hidden giving you the look but better flow??? Just not sure if you were to weld the curve pipe into the straight if the gases will mix and flow as well as if they are in a nice 2-1 collector is all . Only a guess but I think it makes sense.
Title: Re: trackin xv750
Post by: MJPriceisright on May 10, 2013, 11:11:39
yep, I was just thinking if the curved pipe came down and under the motor and  the factory straight one came past at the same height the collector could catch and merge the 2 at a straight shot into the one pipe and it would be hidden giving you the look but better flow??? Just not sure if you were to weld the curve pipe into the straight if the gases will mix and flow as well as if they are in a nice 2-1 collector is all . Only a guess but I think it makes sense.

it would have to be the other way around, the curved pipe from the back cylinder would be on the outside, and the pipe coming from the front head would be on the inside, or it would stick out pretty far.  but yes I see what your saying about the collector etc.  we seem to be about the same skill level with Microsoft paint as well, haha!  thanks for the input.  gonna make some calls today and get some pipe bends and get this shit done!
Title: Re: trackin xv750
Post by: Rich Ard on May 10, 2013, 11:32:52
Here, I'll clutter up your thread a bit. We worked on some wiring last night (mostly on MJ's buddy's bike, as it turned out).

(http://i.imgur.com/n0fTmhSl.jpg)
Title: Re: trackin xv750
Post by: MJPriceisright on May 10, 2013, 11:40:35
more clutter.. the thread, and the shop.. geez
Title: Re: trackin xv750
Post by: Rich Ard on May 10, 2013, 12:05:18
That little fucked up stool cracks me up
Title: Re: trackin xv750
Post by: MJPriceisright on May 10, 2013, 12:12:37
That little fucked up stool cracks me up

my brother (McGiver) was going to put koich's GS450 sissy bar back rest on it.. he'll get it on there in the next 6-9 months im sure when he gets around to it.
Title: Re: trackin xv750
Post by: Rich Ard on May 11, 2013, 17:04:41
It looks like an extra from The Brave Little Toaster
Title: Re: trackin xv750
Post by: MJPriceisright on May 21, 2013, 12:18:38
It looks like an extra from The Brave Little Toaster

ineed it does.. although it dropped me on my ass this past weekend.  anyways.  I picked up a clutch and brake lever with the perches off ebay.. they are for a yz125, so they'll fit my bars etc etc etc... just needing a brake cable to get the brakes situated.  im also waiting for an exhaust to come in the mail so that will hold me over until I get all the custom bends etc for my one off exhaust.  Richard is taking a cruise up to GR to help finish the wiring on my bike and it should be a runner by the weekend im hoping.. would love to take it for a spin asap to see how the brakes feel, so when everyone tells me "I told you so" I can go back and get it re-situated.
Title: Re: trackin xv750
Post by: MJPriceisright on May 22, 2013, 12:26:37
so the exhaust for the bike came yesterday (thanks bonedaddy) but unfortunately it doesn't appear to work for my bike.. I think maybe its a second gen exhaust?  the rear pipe looks to be too long/and nowhere to mount for the support.  anyways, I started tinkering last night and decided to run this setup instead, I really dig the dual over under look.  just trying to figure how to do the rear cylinder to add some length, to get remotely close to the front pipe.  if I just swing with a 90' bend and then another to the pipe, it will be way way shorter than the front cylinder.. ideas?
Title: Re: trackin xv750
Post by: shamus on May 22, 2013, 13:00:20
Looking pretty slick.
Title: Re: trackin xv750
Post by: MJPriceisright on May 28, 2013, 11:00:30
ok so I had a little time before the holiday to work on the exhaust so I went down and cut some pieces at my old mans shop, and I have to say im pretty happy overall with the way the rear pipe turned out.  of course you can see in the pics I tried out a couple seams on the joints with no success, got really hot and burned through.  so I think ill be having someone seam weld up the joints with a tig welder..  ive been told its most likely the best option because of the variable heat ranges it has capability of..  anyways, here are some pics.  not sure if im going to re do the whole front pipe or just add to the existing factory pipe, we'll see tonight when I get home, and where my motivation is at. 
Title: Re: trackin xv750
Post by: brewtown16 on May 28, 2013, 13:08:17
Just an observation, but isnt that a bit close to the battery box?
Title: Re: trackin xv750
Post by: MJPriceisright on May 28, 2013, 13:25:06
there isn't a battery box.   I think you're looking at the lower frame portion that was cut out.   that whole rear section will be empty like that.   will be exhaust wrapping both pipes as well. 
Title: Re: trackin xv750
Post by: Maritime on May 28, 2013, 13:35:50
Nice work, If the ID of the new and factory pipe are the same, just cut the factory and add a piece to connect the mufflers. I like the look of it. Suites the way the tail looks etc.
Title: Re: trackin xv750
Post by: MJPriceisright on May 28, 2013, 14:09:48
Nice work, If the ID of the new and factory pipe are the same, just cut the factory and add a piece to connect the mufflers. I like the look of it. Suites the way the tail looks etc.

the new pipe slides right into the mufflers no problem, worked out nicely.  gonna make another tonight and get it seamed up tomorrowm stay tuned.
Title: Re: trackin xv750
Post by: JAGspeed on May 29, 2013, 00:27:39
Pipe looks cool. Kinda like the Frankenpipe look, almost a shame to wrap it.
Title: Re: trackin xv750
Post by: MJPriceisright on May 29, 2013, 09:11:21
Pipe looks cool. Kinda like the Frankenpipe look, almost a shame to wrap it.

thanks man, yeah I know, just depends on what it looks like finished up, but Im also considering wrap just because of how close the rear cylinder pipe is to my foot, hopefully it will cut down on some of the heat.
Title: Re: trackin xv750
Post by: MJPriceisright on May 30, 2013, 00:13:12
got a little time to finish the front cylinder pipe, extended it to meet the lower muffler.  everything looks pretty good, going to pick up some stainless wire and get these pipes seamed up tomorrow hopefully.  then off to finish up the electrical this weekend, would love to hear it run sooner than later.  we'll see.
Title: Re: trackin xv750
Post by: DreadRock on May 30, 2013, 11:00:03
Man just seen the pic so took alook and have to say I really like the looks of your build sir and pipes fit the bill !!
Title: Re: trackin xv750
Post by: Rich Ard on May 30, 2013, 11:04:54
Really coming together man - let me know what your weekend looks like and let's get this thing fired up.
Title: Re: trackin xv750
Post by: MJPriceisright on May 30, 2013, 12:52:05
Man just seen the pic so took alook and have to say I really like the looks of your build sir and pipes fit the bill !!

thanks man yeah I am really liking how those pipes are working out.  Rich anytime Saturday would work for me, sunday would be a bit tricky.  lemme know!
Title: Re: trackin xv750
Post by: Rich Ard on May 30, 2013, 12:55:43
thanks man yeah I am really liking how those pipes are working out.  Rich anytime Saturday would work for me, sunday would be a bit tricky.  lemme know!

Get 'em in the truck and bring 'em down Saturday, I'll be home all day and we'll knock it out.
Title: Re: trackin xv750
Post by: MJPriceisright on May 30, 2013, 15:37:04
Get 'em in the truck and bring 'em down Saturday, I'll be home all day and we'll knock it out.

ill see what i can do.
Title: Re: trackin xv750
Post by: MJPriceisright on May 30, 2013, 15:39:58
can the outer sleeve of my front exhaust pipe be cut off so the pipes are similar in diameter?
Title: Re: trackin xv750
Post by: verboten1 on May 31, 2013, 00:04:39
Are you in GR? I have a pretty trashed one off of a 1000 you could try it on. We have a car show here next weekend, and I'm sure I could get it to GR with a buddy if you want to see what it looks like
Title: Re: trackin xv750
Post by: MJPriceisright on May 31, 2013, 08:24:33
Are you in GR? I have a pretty trashed one off of a 1000 you could try it on. We have a car show here next weekend, and I'm sure I could get it to GR with a buddy if you want to see what it looks like

yeah im in grand rapids.  im just a little concerned about the clearance between the front pipe and tire, now with the shorter forks it seems pretty close.  I wont be in town unfortunately next weekend but thanks for the offer, I think ill probably make a full sectioned one later with a harder bend off the head to stay away from the tire.
Title: Re: trackin xv750
Post by: Maritime on May 31, 2013, 11:09:07
Very nice work there.
Title: Re: trackin xv750
Post by: verboten1 on May 31, 2013, 17:04:04
I wont be in town unfortunately next weekend but thanks for the offer

Well let me know if you want it I can get it to your side of the state if needed!
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 02, 2013, 13:22:13
well I did a days worth of work and got the whole bike up and wired together,  hid lines,  made it look good,  only to hear it run on one cylinder.   currently the bike has no spark on the rear cylinder.  spent some time on the phone with Richard and checked coils,  the alternator pickup,  lines etc and everything checked out fine.   I'm now leading towards a short in the tci box.  everything we tried we failed to get spark back there.   furthermore,  I did some reading last night about the tci box circuit board,  so I opened it up this morning and checked carefully over every joint and all looks good.   so I'm guessing there is the possibility that something on the board has shorted out.    anybody around here have an extra tci box?    there is a guy locally who has one that I'm going to see if i can "borrow"  it today to double check that's my problem. 
Title: Re: trackin xv750
Post by: Rich Ard on Jun 03, 2013, 00:46:36
I'm just going to update your shit for you and tell everyone that it was in fact the TCI that was bad.

Now finish playing with the fuel delivery so we can take these damn things out for a ride!
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 03, 2013, 11:21:07
I'm just going to update your shit for you and tell everyone that it was in fact the TCI that was bad.

Now finish playing with the fuel delivery so we can take these damn things out for a ride!

indeed, I went to the local parts guy who had another virago he was parting out.. although his was a 1981 and had a metal cased tci, with some movement of the wires, I got things lined up and the bike fired up and ran on two cylinders... however... when I was checking spark on the rear cylinder.. it shot gas so hard out of the spark plug hole it hit the wall (minor details rich).  anyways, after I got the cylinder cleaned out, the bike fired and ran on two, which was good.. but it did run rough, especially on the front cylinder, was backfiring hard, I could see and feel the front carb bounce when it did, small flames out of the muffler etc.. and then it would stall.  I opened the carbs up last night to everything looking in great shape, granted im no expert at carbs... but I was hoping to see a bunch of shit in there and a definite need for cleaning.  so I cleaned all the little trinkets, checked the float bowls to what I believe to be set correctly.  looked like gas wanted to come up out of the needle when I had them on the bench while checking the float bowls.. I wrapped em up and tossed em back in the bike but couldn't get them to slide onto the boots well, so I gave up for the night. 
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 03, 2013, 11:31:24
also want to let it be known that when I was taking the carbs off, the air intake boot was loose, just slipped on.. so im assuming that's what could have been causing my high idle?  would that also flood my cylinders with fuel cause its getting too much air or no? 
Title: Re: trackin xv750
Post by: Rich Ard on Jun 03, 2013, 11:41:04
it shot gas so hard out of the spark plug hole it hit the wall (minor details rich).

ha!

also want to let it be known that when I was taking the carbs off, the air intake boot was loose, just slipped on.. so im assuming that's what could have been causing my high idle?  would that also flood my cylinders with fuel cause its getting too much air or no? 

yes and no
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 03, 2013, 12:07:35
any thoughts on the gas coming up out of the needle?  did I check the floats incorrectly? only reason I feel like this would happen is cause the bowl is overflowing..
Title: Re: trackin xv750
Post by: Rich Ard on Jun 03, 2013, 12:09:42
So the front cyl is still flooding with gas after you confirmed float height was stopping the fuel ~ the seam of the float bowl/carb body?
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 03, 2013, 12:12:21
i haven't put the recently cleaned up carbs back on and test fired yet... but before they came off..  initially the rear cylinder was dumping gas.. then we cleaned out the cylinder and the rear ran fine, but the front has been burping and coughing the whole time... backfiring etc.  last night when i had the carbs in the vise, doing one at a time so they were clamped in level, the gas was right around the edge or slightly below a bit..  definitely not over the edge.
Title: Re: trackin xv750
Post by: Rich Ard on Jun 03, 2013, 12:16:22
Well - make sure that the floats pivot freely on their pins and that the throttle butterflies are opening simultaneously. Hopefully there was just some tiny schmutz holding the float needle open or something.
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 03, 2013, 12:18:12
word.. going to get them back in tonight and test fire again.. need to cause im leaving for the week, headed out the jersey shore to wrestle with the rest of meatheads out on the beach for a few days... kidding.. but seriously.  after this i just have to get a headlight ordered up and some bodywork.. nice.
Title: Re: trackin xv750
Post by: Rich Ard on Jun 03, 2013, 12:23:09
you're not kidding though
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 03, 2013, 13:16:54
you're not kidding though

so true.  anyways.. here is the headlight im thinking, just wondering about the overall depth.. it says including the bulb at its deepest point its 6"... what do you think?  offset it for some more room of course.
Title: Re: trackin xv750
Post by: Rich Ard on Jun 03, 2013, 13:20:42
If that happens to fit between the upper and lower tree that would be some cool shit
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 03, 2013, 13:24:04
If that happens to fit between the upper and lower tree that would be some cool shit

hmm right right, its H-9" W6" D-6"


seems like that might be too wide
Title: Re: trackin xv750
Post by: Finnigan on Jun 03, 2013, 14:10:02
That would look real good
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 03, 2013, 15:27:23
i agree but i don't know how 6" wide will look.. that means i cant tuck it into the forks very tight.. which means i would have that big honking thing out in front of the bike..
  sucks when you cant see things in person.
Title: Re: trackin xv750
Post by: Rich Ard on Jun 03, 2013, 15:31:01
with the gsxr forks i can't really picture a headlight you could tuck into the forks!

if you flipped that lamp so that the deepest part was closest to the top triple you might be able to get away with it under a 'number plate' like you were talking about
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 03, 2013, 15:40:07
i wonder if i should just buy a naked projector bulb and just do the original number plate mount.. any good places to pick up projector lamps?  something like this maybe?

http://www.ebay.com/itm/2x-2-5-Motorcycle-Bike-HID-BI-XENON-Projectors-Lens-Kit-Halo-Angel-Devil-Eye-AC-/151044645900?pt=Motorcycles_Parts_Accessories&hash=item232af6640c&vxp=mtr
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 04, 2013, 12:12:56
so last night I got the carbs back in the bike and got some test fires in.. I still am having some backfiring, running too rich issues here.. keep in mind it was the first time I had checked bowls on a carb before.  they looked ok (to me) and it just still seems to be backfiring etc.. I turned the idler screws all the way in and backed em out two full turns.. then another half, half, half, half... seemed to be running better and better the more I unscrewed em, but its still stalling out after running for like 20-30 seconds.. if I keep my hand on the throttle I can keep it running, but sitting at idle it will stall out, like in the video.  pulled the plugs and they are black as night everywhere except the very tip of the electrode, which is white..  so I was confused whether it was running lean cause of the white tip, or its rich cause its black everywhere else.  this bike has no air filter setup right now, opened exhaust.. how can it be running rich?  It has stock jetting to my knowledge.  had stock airbox and filters when I tore it down..  any help is greatly appreciated guys
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 04, 2013, 12:13:43
I also have a couple videos of the bike running and stalling.. not sure if I can post them up cause they files are pretty large, anyone help out with that?
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 11, 2013, 01:44:24
so after some further research it turns out my bike had a set of 920 carbs installed...  wrong.   so I picked up some 750 carbs from a local guy and put them on the bike..  started up but was only running on the rear cylinder.   front cylinder isn't getting fuel.   so I need to tear them down and re clean them.  also have a rebuild kit coming this week.  one thing to mention when I initially hooked em up,  that large vacuum line on the top of the carb was overflowing with gas.  thoughts on that?   really hoping something is just clogged up..   but the bike did start and idle fine on one cylinder..  so a small success on the evening. 
Title: Re: trackin xv750
Post by: Rich Ard on Jun 11, 2013, 09:58:54
so after some further research it turns out my bike had a set of 920 carbs installed...  wrong.   so I picked up some 750 carbs from a local guy and put them on the bike..  started up but was only running on the rear cylinder.   front cylinder isn't getting fuel.   so I need to tear them down and re clean them.  also have a rebuild kit coming this week.  one thing to mention when I initially hooked em up,  that large vacuum line on the top of the carb was overflowing with gas.  thoughts on that?   really hoping something is just clogged up..   but the bike did start and idle fine on one cylinder..  so a small success on the evening.

Glad to hear you're that much closer. I assume you mean the vacuum line from the petcock is filling up with gas? Pull the petcock apart and see if the little diaphraghm in it is busted. If that's the case - and I'm going to guess this is the one that runs to the front cylinder? - that might explain your fueling issues.

I have several good XV petcocks lying around, or you can bypass that entirely and use the 'prime' function and cap off the vacuum line at the carb intake.
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 11, 2013, 11:00:12
this is the line I was talking about with gas coming out of it... gonna try and tear em down tonight and soak em. 
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 11, 2013, 12:41:37
if this photograph is correct on the main and pilot jetting location, I believe the guy who rebuilt mine switched them, having the pilot jet in the main jet spot.  can someone confirm this?  thanks
Title: Re: trackin xv750
Post by: kopcicle on Jun 11, 2013, 14:11:53
photo is correct ..

the Main jet screws into the needle jet or "emulsion tube" and is the larger of the two .

~kop
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 11, 2013, 14:46:33
photo is correct ..

the Main jet screws into the needle jet or "emulsion tube" and is the larger of the two .

~kop

you da man, thanks dennis
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 12, 2013, 10:40:46
so indeed the pilots and mains were backwards, so I got the carbs out and got them switched back and in the right spot.. once I put the carbs back in, the bike fired right up but had zero throttle reponse.. just bogging out, no fuel as it seemed.. so next step was to check the float bowls.   they appeared low, and Richard came up to gr and we got em set up on the bench, back in the bike with some fresh plugs and its now running on two like it should.  still a little concerned with some hiccupping back through the carb, I can see the carbs bounce in the boot when it happens, but I will look into it further today as it was late last night and wasn't going to wake the neighbors cause this thing is loudddddd.   
Title: Re: trackin xv750
Post by: Rich Ard on Jun 12, 2013, 11:11:42
so indeed the pilots and mains were backwards, so I got the carbs out and got them switched back and in the right spot.. once I put the carbs back in, the bike fired right up but had zero throttle reponse.. just bogging out, no fuel as it seemed.. so next step was to check the float bowls.   they appeared low, and Richard came up to gr and we got em set up on the bench, back in the bike with some fresh plugs and its now running on two like it should.  still a little concerned with some hiccupping back through the carb, I can see the carbs bounce in the boot when it happens, but I will look into it further today as it was late last night and wasn't going to wake the neighbors cause this thing is loudddddd.

Yeah, in retrospect cranking it all the way open was not my best move. Sounds pretty cool though.
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 12, 2013, 12:21:04
yeah sure does.. exhaust glows red too!  we turned the lights off the second time to see where it was getting hot.. its right near the 90 off the head where it likes to glow a bit.. not sure how I feel about that.
Title: Re: trackin xv750
Post by: Rich Ard on Jun 12, 2013, 12:31:11
I would venture a guess that it's the rear cylinder that's lean - super short exhaust and no filter whatsoever.
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 12, 2013, 12:36:45
I would venture a guess that it's the rear cylinder that's lean - super short exhaust and no filter whatsoever.

I feel like you wanted to say "duh" after that sentence..
Title: Re: trackin xv750
Post by: Rich Ard on Jun 12, 2013, 12:39:24
story of my life
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 12, 2013, 22:33:13
today the bike was running pretty good.   I put some filter Foam into the frame st the back to slow
 the air delivery down a bit.   instant throttle response.  one last thing to mention is the popping from the rear cylinder.   still seems to be running lean,  guessing it's the short pipe...  I have a spare set of 920 carbs so I was thinking about putting the 128 main in,  in place of the stock 122, see if that richens it up and males the popping and hicupping back into the carb go away.  when I put slight choke on it doesn't pop at all.   any thoughts?   
Title: Re: trackin xv750
Post by: Rich Ard on Jun 13, 2013, 00:39:12
Give it a shot - with the wildly different exhaust lengths you may very well need to jet each appropriately.

Probably time to nail down what you're going to do air filter-wise, too.
Title: Re: trackin xv750
Post by: Rich Ard on Jun 13, 2013, 02:29:45
Also - check for air leaks at the carb boots.
Title: Re: trackin xv750
Post by: bradj on Jun 13, 2013, 03:31:56
Also - check for air leaks at the carb boots.

this guy telling some one to check for leaks
Title: Re: trackin xv750
Post by: Rich Ard on Jun 13, 2013, 08:12:26
Oh Yeah and make sure stuff is screwed into stuff
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 13, 2013, 13:44:48
Give it a shot - with the wildly different exhaust lengths you may very well need to jet each appropriately.

Probably time to nail down what you're going to do air filter-wise, too.

yep checked for leaks and its all good there.. also ive got the idea of what im gonna do for the filters as well.. going to pick up some switches, get my brake and throttle cables modified, and finish welding up the exhaust today.
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 14, 2013, 10:48:38
only got the switches finished yesterday and also the throttle cable is now cut to length, has a new end soldered on as well. worked out perfectly and looks great.  switches I am so so about, but its one less thing on the list.  need to get a new starter solenoid for my two wires that engage it, are not working.. thinking about just going to an autoparts store and picking one up from who knows what.. any ideas?  also need to get the exhaust finished up.  filter screen in the picture is a work in progress..
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 14, 2013, 14:26:55
evening project.  hopefully this works out alright.
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 17, 2013, 09:24:04
so this weekend I got all the wiring finished up, and got the solenoid in.. my brother and I decided it was time for a cruise down the road.  I also am currently running the stock jetting in the front (122) and a 128 main in the rear (+6)  due to the short length pipe in the rear.. have to say I was really happy to zip down the road.  however.. I started giving it some gas, around half throttle and the bike fell flat on its face.. wondering if I need to continue to raise the jetting on that rear cylinder.
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 17, 2013, 09:35:50
doing some looking around online and only seeing the hitachi main jets sold up to 134.. anyone know where I can get different sizes?  does anything think ill need to go larger than 134?  seems like a big jump from the stock for a shortened pipe and more open exhaust... then again.. im a total amateur at carbs..
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 18, 2013, 08:59:48
well last night I pulled the carbs once again and I drilled out the rear cylinder with a number 53 drill bit, figured why not, whats the worse that can happen.. buttoned it all back up and down the road, still falling on its face!  got back and the plug is still a chalky whiteish color, I attached pictures of both. the front is a bronzeish color which looks ok.  so I spoke with rich last night and im basically going to pick up a #50, #47, #45 bits and start drilling.  I have plenty of jets laying around now that ive become a collector of virago parts.  guess we'll see..
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 18, 2013, 10:59:05
bit sizes I have to work with.. seems ridiculous, but this bike is ridiculous so why not.

#53 0.059 1.511  =  150 main  (currently)
#52 0.064 1.613  =  160 main
#51 0.067 1.702  =  170 main
#50 0.070 1.778  =  180 main

Title: Re: trackin xv750
Post by: Cuff on Jun 18, 2013, 18:13:24
Not sure if this will help you but I've found the following guide lines for jet sizes.
2 sizes up for pods.
2 sizes up for less restrictive muffler.
1 size up for every 8 inches of pipe taken off.
1 size up for every pipe split from the rest.  (eg, 4 into 1 changed to 4 into 2 = 1 jet size)

Just a guide for starting. 

Love the build btw.
Title: Re: trackin xv750
Post by: beachcomber on Jun 19, 2013, 06:05:35
doing some looking around online and only seeing the hitachi main jets sold up to 134.. anyone know where I can get different sizes?  does anything think ill need to go larger than 134?  seems like a big jump from the stock for a shortened pipe and more open exhaust... then again.. im a total amateur at carbs..

I'm always a bit reluctant to dive in on things like that ........."oh he must be a knowitall". I WAS about to throw my 2 pennarth in as it happens ! 

However ............................... without doubt the problem IS the major difference in primary pipe lengths.

Basically the velocity of the gasses in the front pipe are pulling the gasses along from the rear pipe and effectively the rear carb can't keep up ! That's putting it in very crude terms, obviously a bit more techie than that.

You CAN get away with a slight mis-match in lengths, and actually if the pipes were seperate there wouldn't be so much of a problem - or if the intake was common. On 4 bangers and V8s with a common inlet chamber for all 4 / 8 inlets - the fuel delivery is not so critical IF the exhaust primaries are of differing lengths - sometimes due to packaging it's unnavoidable.

I would suggest bringing the rear pipe up and over the clutch housing to join the front pipe closer to the front head. It will still look the biz [ maybe better ! ] and will reduce, if not solve the jetting problem.

Feel free to contact me anytime.
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 19, 2013, 10:44:38
so to bring this thread up to date, I continued to up the main jet with zero success, bike actually started running worse as I got bigger and bigger.. so I have gone back to pretty much stock jetting.. 122 in the front, 128 in the rear (shorter exhaust pipe)  and ive placed two washers under each needle.  bike still falls on its face right directly at 50% throttle.. starting to think I have some type of electrical problem going on, its too consistent right at that point... Richard and I spoke on the phone and I need to get a good working battery in the bike, Ive just been using a small Suzuki motorcycle battery that is old, and have been jumping the bike with a jump box to get it started.. I also need to get some new plugs in there as well.. it feels like a fouled plug at that 50% throttle point. 
Title: Re: trackin xv750
Post by: Rich Ard on Jun 19, 2013, 11:25:14
You CAN get away with a slight mis-match in lengths, and actually if the pipes were seperate there wouldn't be so much of a problem - or if the intake was common. On 4 bangers and V8s with a common inlet chamber for all 4 / 8 inlets - the fuel delivery is not so critical IF the exhaust primaries are of differing lengths - sometimes due to packaging it's unnavoidable.



I know that MJ was concerned about this from the get go - but as the exhaust pipes *are* separate, he should be able to tune for same, no?
Title: Re: trackin xv750
Post by: beachcomber on Jun 19, 2013, 19:26:33
I know that MJ was concerned about this from the get go - but as the exhaust pipes *are* separate, he should be able to tune for same, no?

NO Rich .........with a Siamese system effectively one pipe works off the other. IOW they interact.

There's no point getting all techie - simple explanation, imagine it is water running through the pipes. The front pipe has more volume and more velocity by the time the second pipe joins it.

The problem would be reduced if the two pipes were completely seperate.
Title: Re: trackin xv750
Post by: Rich Ard on Jun 19, 2013, 19:53:39
I think we're arguing the same point, Beach - MJ has two completely separate exhaust pipes, rather than having gone 2-1. Neither the intake nor the exhaust are joined (in fact, he recently picked up a single carb manifold and decided not to use it as it might cause just such a problem).
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 19, 2013, 20:20:39
i need to check the carbs are synced etc tomorrow. today i did however get my new battery in there, as well as some brand new ngk plugs to try and see if that helped.. well it didnt. it runs and idles so well up until half throttle, then cuts out.. so richard told me to try and let the bike sit in neutral, rev it up to half throttle when it starts to cut out, and pull a plug off to see which cylinder is cutting out, and it is definitely the back cylinder. pulled the plug wire while it was cutting out and no change when the wire came off... soooo having that said. i am thinking about getting the carbs off once again, and going threw them myself. the friend who sold them to me cleaned them, but how well? he said he cleaned them "decent" so that im sure doesnt mean he got into those air passageways with the wire or whatever.. so if the air passageway was clogged up, essentially that would refrain from opening the slide up any further than half throttle and thats why it could be cutting out? not enough air to lift the diaphragm up any further? thanks everyone for all the help.. god im so close, i cant wait to ride this bad boy.
Title: Re: trackin xv750
Post by: bradj on Jun 19, 2013, 21:13:28
Done yet :P
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 19, 2013, 22:14:42
still searching for the middle finger emoji brad
Title: Re: trackin xv750
Post by: bradj on Jun 19, 2013, 23:02:21
Ha

bike looks rad man good shit
Title: Re: trackin xv750
Post by: beachcomber on Jun 20, 2013, 05:05:35
I think we're arguing the same point, Beach - MJ has two completely separate exhaust pipes, rather than having gone 2-1. Neither the intake nor the exhaust are joined (in fact, he recently picked up a single carb manifold and decided not to use it as it might cause just such a problem).

OOOOOOPPPPS - the sketch I saw way back was Siamese - no ? That'll teach me to keep up with the whole thread. However - disregarding the first part of my response - the second part is still valid

Title: Re: trackin xv750
Post by: MJPriceisright on Jun 21, 2013, 08:22:19
well I believe I have found the problem.  last night after getting everything cleaned up for the last time.. the bike was still running like shit.. so we popped a test like on the bike, and I have great spark and good flow of light coming from the rear cylinder the whole time, but not the front.  you can see breaks in the light on the test light here and there on the front cylinder, and when you rev the bike up, big big gaps in the light causing the bike to shut down.  ive checked and double checked my wiring, tested both the coils, switched them completely to see if the problem follows the coils or wires, with no such luck.  so once again, back to the TCI module troubles.  been doing some reading about troubleshooting and symptoms, and seems pretty similar.  keep in mind this is my second module, the first one wouldn't supply any spark to the rear cylinder.  so im going to send out my first plastic style module for repair.  nice that the repair guy is just over in Illinois, so should have it back mid week next week.  so having that said, this should be the last time I have to post bitching about the running like shit symptoms im having. 
Title: Re: trackin xv750
Post by: Maritime on Jun 21, 2013, 08:33:50
CDI/TCI etc. when the magic smoke goes, forget about it.  Glad you found a repair guy close to home.
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 21, 2013, 12:03:26
CDI/TCI etc. when the magic smoke goes, forget about it.  Glad you found a repair guy close to home.

right on man, just tired of dealing with this thing, its almost july for Christ sake and I don't have a daily rider yet.. oh well, shipped the tci this morning and should have it back by Wednesday of next week if all goes well and smooth.  also picked up a fleebay tail light today, should see that soon as well.  all I need now is it finish the front brake, bodywork,  and figure out my headlight setup.. oh and go get a license plate..
Title: Re: trackin xv750
Post by: Maritime on Jun 21, 2013, 12:15:25
LOL I know, I hate being without a bike, I went to do my tires on Wed and buggered the valve core on the back tube, said oh well I'll go to the dealer and get a tube tomorrow, no-one in 100 miles had a tube in stock, so I found a valve core repaire kit for 4.00 and I am riding today, but 3 days without a bike sucked.  I can't imagine 3+ months or more.
Title: Re: trackin xv750
Post by: beachcomber on Jun 21, 2013, 13:02:54
LOL I know, I hate being without a bike, I went to do my tires on Wed and buggered the valve core on the back tube, said oh well I'll go to the dealer and get a tube tomorrow, no-one in 100 miles had a tube in stock, so I found a valve core repaire kit for 4.00 and I am riding today, but 3 days without a bike sucked.  I can't imagine 3+ months or more.

Try THREE fargin years ..............................
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 21, 2013, 13:15:36
Try THREE fargin years ..............................

yikeeeesss...  also going to pick up some exhaust wrap tonight I believe, that rear pipe puts off some good heat right near my leg
Title: Re: trackin xv750
Post by: bradj on Jun 23, 2013, 01:23:56
Race ya to road worthy
Yamaha for.the win
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 24, 2013, 09:24:46
Race ya to road worthy
Yamaha for.the win

how about you ride out to Michigan, and ill start a fire big enough to put both our bikes into it, we drink beer, everyones a winner.
Title: Re: trackin xv750
Post by: Rich Ard on Jun 24, 2013, 09:51:19
You mean drive out to Michigan
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 24, 2013, 09:52:54
You mean drive out to Michigan

lol yes, trailer the bike here, so we can have a yamabonfire
Title: Re: trackin xv750
Post by: bradj on Jun 24, 2013, 19:22:28
Ill rent a uhaul and pack it full of 2 strokes and my traker well burn it all party like its 1999
Title: Re: trackin xv750
Post by: Rich Ard on Jun 24, 2013, 19:32:30
Bring my front end down with you and I'll cover the kerosene and Miller Light
Title: Re: trackin xv750
Post by: bradj on Jun 24, 2013, 19:52:24
Ill send that fork as long as you wait a month and then start bitching like a woman about it
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 27, 2013, 14:42:48
brad might be a tight race here, almost finished now.. just some small odds and ends that need to be wrapped up.  for some of the early followers who were very concerned about the front end drum brake, need not worry.  the bike actually brakes pretty well, and with both front and rear brake applied it actually haults to a stop.  I didn't notice this until I was tossing the treads on the rims, but my front wheel has a larger diameter drum.  also got my taillight and got a rough mount to see how it looks, and I don't think it could fit in there any better, nice and tucked away.  also, just rattle can bombed the tail and tank for a visual, and im thinking ill leave the side of the tank raw, with the stock black badges.  thoughts?
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 27, 2013, 14:44:19
but on a side note, tonight ill be plugging in the newly refurbished tci that's sitting in my mailbox, and if this thing doesn't run, I swear im gonna burn it down.
Title: Re: trackin xv750
Post by: Rich Ard on Jun 27, 2013, 14:56:28
Godspeed my man
Title: Re: trackin xv750
Post by: pr design on Jun 27, 2013, 17:37:43
Really digging the pipes on this MJ.  Keep it up looks like it will be super fun to ride
Title: Re: trackin xv750
Post by: notlob on Jun 27, 2013, 18:12:22
nearly there, you can see the winning line.

Thats a great view from the back.
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 27, 2013, 23:03:21
Fuck this piece of shit.   still runs like garbage.
Title: Re: trackin xv750
Post by: MJPriceisright on Jun 28, 2013, 02:20:02
so before the night ended my brother suggested I toss this two into one intake I had laying around with some random xv carb on the end of it,  on my bike,  just for shits..  this intake and carb were in a box of parts I bought for 40 bucks a couple weeks ago...  so without even looking inside the carb we just threw it on there,  and wouldn't ya believe it,  the bike runs.  and runs well.   so I guess I'll just go fuck myself then.   haha.   I have no clue what's going on with the stock dual carb setup,  I feel like I've covered every aspect with zero result.   so I guess I'm gonna be running the single carb setup.   more updates tomorrow when I get out for a decent cruise around the block
Title: Re: trackin xv750
Post by: bradj on Jun 28, 2013, 13:10:27
Fuck this piece of shit.   still runs like garbage.
right here is where i thought to myself i have a chance

  and wouldn't ya believe it,  the bike runs.  and runs well.   more updates tomorrow when I get out for a decent cruise around the block
right here is where i lose...


fucker
Title: Re: trackin xv750
Post by: MJPriceisright on Jul 01, 2013, 17:11:46
right here is where i thought to myself i have a chance
 right here is where i lose...


fucker

yep yep sorry brad.. the bike is alive and well.  just need to finish up the brake light, headlights and a number plate for the front and I should be all finished.
Title: Re: trackin xv750
Post by: TranceMachineVienna on Jul 04, 2013, 07:30:43
the public demands pics AND videos... :o startup sound  :o
Title: Re: trackin xv750
Post by: MJPriceisright on Jul 13, 2013, 12:33:02
the public demands pics AND videos... :o startup sound  :o

haha I will do my best to get you some video footage of the bike.  not much going on right now, just finished up some little odds and ends, gonna drop off my tank/tail next week to be finished up, just a little budget job nothing special.. added the front racing plate, figure if I cant beat the bott bike, might as well join em. lol.  really like how its turned out, gonna put some miles on the ole girl end of next week.  thanks for all the help from the DTT family, really appreciate all your shit talking, random insults, and words of wisdom.
Title: Re: trackin xv750
Post by: MJPriceisright on Jul 13, 2013, 12:40:30
so im new to the uploading youtube videos but just wanted to throw a quick shot of my brother doing a ride by, kind of give you the idea of how it sounds.. Its a bit loud, but it does sound a little better than a lawn mower.


http://www.youtube.com/watch?v=pzHGS4s3DPg (http://www.youtube.com/watch?v=pzHGS4s3DPg)
Title: Re: trackin xv750
Post by: DesmoBro on Jul 13, 2013, 20:16:06
looks great nice job sounds like a harley....ish
Title: Re: trackin xv750
Post by: Rich Ard on Jul 13, 2013, 23:01:46
Hell yes!
Title: Re: trackin xv750
Post by: MJPriceisright on Jul 17, 2013, 12:25:33
thanks fellas.. yeah sounds nice.. this is day two of riding to work with the ole girl.. gotta say, even though my seat is just a couple layers of a doormat, I really feel comfortable on it.  everything is running and working properly as of right now, thinking I might need to adjust my valve clearances, I think I hear a little noise coming from the top end.  also, I spoke with rich about this the other day... when I first put the bike back together I put standard car oil in it, oops.. so my clutch is slipping at higher rpms... so I drained the oil and replaced it with actual motorcycle oil but it still seems to be slipping out a bit up there.. any thoughts?  should I bare down and pull the clutch for a cleaning?  I rode about 60 (at least) and only used a gallon and a half of gas, so I was also pretty happy with that as well.  any thoughts are appreciated fellas.  thanks!
Title: Re: trackin xv750
Post by: bradj on Jul 17, 2013, 16:20:10
Rich can help with the valve adjustment
Title: Re: trackin xv750
Post by: Saik0 on Jul 18, 2013, 06:00:31
If the clutch plates are not in any way impregnated with the car oil just change a few times and should become less. If you're unlucky you'll have to replace them. There are some nasty additives in car oils that can ruin the plates.
Title: Re: trackin xv750
Post by: MJPriceisright on Jul 19, 2013, 08:30:23
If the clutch plates are not in any way impregnated with the car oil just change a few times and should become less. If you're unlucky you'll have to replace them. There are some nasty additives in car oils that can ruin the plates.

well that sucks.  anyways, I had an extra used clutch basket with plates in a box of parts I picked up not too long ago, so I pulled the side cover and put em in there, thinking maybe a used set of plates would do me good, but not the case.  still slipping.. id say its somewhere around half throttle or maybe more you can hear the bike pulling out of gear, its more noticeable in the higher gears at low speeds when I jump on the throttle.  thoughts?
Title: Re: trackin xv750
Post by: Maritime on Jul 19, 2013, 09:12:17
New plates should be cheap, soake for 24 hours min in motorcycle oil then install. New springs will likely make the most difference, they get soft, but make sure you have the clutch packed exactly right. My 450 had slippage and I bought new friction plates, when I was going to install I havd the parts fiche exploded view printed and as I unpacked the basket, noticed the PO have reversed 2 plates and it was the reason it was slipping at higher RPMS in the higer gears. It really is easy to do on some clutches.  I almost did the same then noticed one plate looked a little different from the rest, looked at the fiche, that plate had a diff part number and it had to go in the right direction, after the plates, new springs the clutch looked up and the bike hauled ass.  I couldn't get past 75 mph before, well over the ton after.
Title: Re: trackin xv750
Post by: MJPriceisright on Jul 25, 2013, 16:02:32
so my tank is off getting dents pulled and I need some advice. I tossed on my buddies xv920 tank and now I cant decide which one I like more.. my buddies tank sits lower in the back so there isn't much of a gap, whereas my tank has a gap from being raised.. any thoughts?
Title: Re: trackin xv750
Post by: Green199 on Jul 25, 2013, 16:07:59
That second tank is sweet mate!

The rear of it really flows into that seat!
Title: Re: trackin xv750
Post by: VonYinzer on Jul 25, 2013, 16:15:32
What he said ^^^
Title: Re: trackin xv750
Post by: Rich Ard on Jul 25, 2013, 18:27:36
If you want I can grab a midnight tank that just got dropped on both sides, will need some work, but it'll be free. I wish you'd done this a week ago I had a nice one I just traded for a 750 tank ::)
Title: Re: trackin xv750
Post by: nedmmo on Jul 25, 2013, 20:09:37
god damn that 920 tank makes the bike i think! just ties everything together so well!
Title: Re: trackin xv750
Post by: MJPriceisright on Jul 26, 2013, 10:15:50
yeah.. not completely sold on it, but going to put a different color at it and see how I feel.  for some reason it just looks a little too big.  idk.. anyways.  rich im all good on that tank, wes and I are going to trade as he was searching for a 750 tank anyways.  just waiting on some clutch plates and springs to come in the mail and ill have some updates.
Title: Re: trackin xv750
Post by: Rich Ard on Jul 26, 2013, 12:43:18
Right on. Like I said I have a good 750 tank as well.
Title: Re: trackin xv750
Post by: MJPriceisright on Jul 26, 2013, 13:56:29
Right on. Like I said I have a good 750 tank as well.

ill keep that in mind for Wesley snipes
Title: Re: trackin xv750
Post by: Rich Ard on Jul 27, 2013, 17:35:15
I'll trade straight up for those clipons if he still has em.:)
Title: Re: trackin xv750
Post by: Cuba Libre on Jul 29, 2013, 05:02:12
so my tank is off getting dents pulled and I need some advice. I tossed on my buddies xv920 tank and now I cant decide which one I like more.. my buddies tank sits lower in the back so there isn't much of a gap, whereas my tank has a gap from being raised.. any thoughts?

I was going to vote for the second setup, until I put some thought into it.
I think that if you raise the tail a little at the front end, maybe also trim that corner that points downwards a little so that it flows better with the tank, the first option is better. It has smoother lines and it looks smaller, which I like (a personal preference of course...)

M.
Title: Re: trackin xv750
Post by: MJPriceisright on Aug 04, 2013, 23:34:01
so the clutch is all installed and before I put the side over back on we adjusted it. seems like the aftermarket clutch lever (emgo shorty) doesn't have enough adjustment, the handle has a bunch of slack that I can't get sorted. the clutch does disengage but only when the lever is depressed like three quarters of the way or more.   so I put the stock clutch adjuster screw in there and the clutch is working just fine.   greaaaaat.   
Title: Re: trackin xv750
Post by: Rich Ard on Aug 04, 2013, 23:57:50
you decide which tank to go with?
Title: Re: trackin xv750
Post by: MJPriceisright on Aug 05, 2013, 00:03:58
yeppp gonna keep wes 920 tank on there.  needs to be painted up asap
Title: Re: trackin xv750
Post by: Rich Ard on Aug 05, 2013, 00:06:22
smart move
Title: Re: trackin xv750
Post by: MJPriceisright on Aug 12, 2013, 13:28:30
got a chance this past week to do some painting.. so I sanded down the 920 tank and got to work.. I decided instead of doing the raw/silver look on the side, to go a little darker with a gunmetal look.  and im pretty happy with it.  was definitely a budget job so its not perfect, but oh well.   Richard has some badges for the sides as well that ill be putting back on.  almost finished and ready for a good before/after shot.
Title: Re: trackin xv750
Post by: Maritime on Aug 12, 2013, 14:33:32
Nice work Mj, this really turned out well.  Really knocked the ugly off her for sure.
Title: Re: trackin xv750
Post by: notlob on Aug 12, 2013, 15:07:06
So when do we get to see the video of you and LBC in Baja
Title: Re: trackin xv750
Post by: LBC on Aug 12, 2013, 16:11:42
Just tuning in... Looks Rad!
Title: Re: trackin xv750
Post by: MJPriceisright on Aug 12, 2013, 18:44:10
So when do we get to see the video of you and LBC in Baja


what is lbc?   sorry if I'm missing something obvious here...
Title: Re: trackin xv750
Post by: bradj on Aug 12, 2013, 21:17:29
With so much drama in the lbc it kinda hard being snoop d o double g

it was the 90's that you missed
Title: Re: trackin xv750
Post by: notlob on Aug 12, 2013, 22:17:21

what is lbc?   sorry if I'm missing something obvious here...

Haha, see the poster at the top of the page and his CB900
Title: Re: trackin xv750
Post by: MJPriceisright on Aug 13, 2013, 03:06:08
bahahaha
Title: Re: trackin xv750
Post by: MJPriceisright on Aug 13, 2013, 15:10:48
I rode this thing down a dirt road like two weeks ago.. not a great idea.
Title: Re: trackin xv750
Post by: LBC on Aug 14, 2013, 11:36:49
I rode this thing down a dirt road like two weeks ago.. not a great idea.

 ;D  I'm full of not great ideas.

Seriously though...you'd be suprised how well it works on and off road with 50/50 dual sport tires.

(http://www.rallytwin.com/harleys/Arapahoe_Pass_1953.jpg)
http://www.advrider.com/forums/showthread.php?p=443418#post443418

Hijack over.
Title: Re: trackin xv750
Post by: MJPriceisright on Aug 14, 2013, 12:23:23
man that is such a tight pic.  I was on like loose gravel/sand type surface so that was a little hairy.. but I think dirt or just some hard surface off roading would be alright.. assuming I remembered to replace all the cotter pins and the wheels don't fall off.
Title: Re: trackin xv750
Post by: MJPriceisright on Aug 17, 2013, 11:55:20
well after a quick shot down near kalamazoo, MI to meet up with Richard and meet some of his acquaintances over at checkered past cycles, I got a chance to tinker a bit.  I was talking with rich about how my bike falls on its face at higher rpms, and is slow as balls  (slower than the usual virago balls)  so I started by taking a look at the plugs.. they looked about the same color as the picture below.  so I pulled the mystery single carb, that ive never opened to see what was going on in there.. I am fine everywhere else except up top, so im concerned with the main jet as of now.  I pull it out and it had been drilled, to some random size I couldn't match.. so I drilled it bigger.. got back out there and did some runs.  its roughly 90% throttle id say now, definitely more power.  but still does the same shit.. so I plug chopped it down the road, for maybe like a constant 15 seconds.  both plugs are white-ish.  not as bad as the rear cylinder was originally before I did anything.. so how big can I drill this jet?  it appears to be getting ridiculously big.  should I worry about maybe cutting off some airflow from the snorkel intake I have on there?
Title: Re: trackin xv750
Post by: johnu on Aug 20, 2013, 00:59:49
got a chance this past week to do some painting.. so I sanded down the 920 tank and got to work.. I decided instead of doing the raw/silver look on the side, to go a little darker with a gunmetal look.  and im pretty happy with it.  was definitely a budget job so its not perfect, but oh well.   Richard has some badges for the sides as well that ill be putting back on.  almost finished and ready for a good before/after shot.

Looks wicked!
Title: Re: trackin xv750
Post by: Green199 on Aug 20, 2013, 07:15:43
Sure does!

Glad you decided with that second seat....love it the more and more I look at it!
Title: Re: trackin xv750
Post by: bradj on Aug 20, 2013, 19:44:32
Race ya to road worthy
Yamaha for.the win
Title: Re: trackin xv750
Post by: MJPriceisright on Aug 21, 2013, 12:18:54


yeah yeah yeah... this hunk of junk is still being daily ridden.. just don't understand whats going on with my fuel situation.. pulled the plugs again, and they are still white ish, which makes me uncomfortable.. I just don't wanna burn this thing down.  so I pulled the carb once again, shimmed the needle one washer, (was all I had, or I would have done 2-3) and I drilled out another jet even bigger to get this thing to richen out.  with no luck.  went and did some plug chops, and around 90% throttle it dies out, let off the throttle and it comes right back.  checked the plugs, still white.  just not sure here.  maybe I just should consider a sportster 883 carb and be done with it?
Title: Re: trackin xv750
Post by: DesmoBro on Aug 21, 2013, 13:12:48
Jets R us .com if you havn't already ....I bet you could find a Sportster Carb at a flea market or yard sale for the same price as jets.  Sounds kinda ridiculous that your running lean after drilling out the jet several times....Replace Jet with Garden Hose?
Title: Re: trackin xv750
Post by: MJPriceisright on Aug 21, 2013, 14:41:27
Jets R us .com if you havn't already ....I bet you could find a Sportster Carb at a flea market or yard sale for the same price as jets.  Sounds kinda ridiculous that your running lean after drilling out the jet several times....Replace Jet with Garden Hose?

yeah the problem is when doing the carb swap into the single, then modifying it to supply enough fuel, they don't have jets large enough for sale.. so its drill bit type shit.  idk.. I rode it to work this morning and it cruises very well, only having issues on the top end.   maybe ill try the garden hose trick. lol.
Title: Re: trackin xv750
Post by: beachcomber on Aug 22, 2013, 04:52:04
yeah the problem is when doing the carb swap into the single, then modifying it to supply enough fuel, they don't have jets large enough for sale.. so its drill bit type shit.  idk.. I rode it to work this morning and it cruises very well, only having issues on the top end.   maybe ill try the garden hose trick. lol.

What's the size of the single carb vs the OEM carbs ? IE TOTAL choke and jet flow? Sounds to me like the single carb is plain running out of delivery capacity at the top end.
Title: Re: trackin xv750
Post by: DesmoBro on Aug 22, 2013, 23:08:35
BIGGER CARB!!!
Title: Re: trackin xv750
Post by: beachcomber on Aug 23, 2013, 05:24:57
What's the size of the single carb vs the OEM carbs ? IE TOTAL choke and jet flow? Sounds to me like the single carb is plain running out of delivery capacity at the top end.
What's the size of the single carb vs the OEM carbs ? IE TOTAL choke and jet flow? Sounds to me like the single carb is plain running out of delivery capacity at the top end.

I WAS looking at a single carb conversion at one stage for my Cafe Creme Boardtracker, I was going to use an SU carb. Very simple to fine tune, inexpensive [ here in the UK at least ] and parts are readily available and cheap. Available in a good range of basic choke sizes - I'd settled on a 2" version before CC was backburnered..
Title: Re: trackin xv750
Post by: MJPriceisright on Aug 23, 2013, 11:11:22
BIGGER CARB!!!

yes that might just be the answer here.. like I had said earlier in the thread, I never even opened this carb, it was on a 2-1 intake I bought in a box of parts, just was like "what the hell lets try it"  and its ran pretty good.  I believe to my knowledge this is a stock 920 carb, saying that because it has that pressed in pilot jet.  I could be wrong but I don't think they did that with the 750 carbs.. ive been riding this thing to work everyday the past week with no hiccups of any kind, (other than on the top end under full throttle, but I rarely open it up)  and the plan is to ride to Chicago this weekend with a buddy..  last night I got the pipes off and used the DEI exhaust wrap sealer, aka charcoal grill paint.  looks much better though.  tonight I might play with the carb one more time before the Chicago venture.
Title: Re: trackin xv750
Post by: Rich Ard on Aug 23, 2013, 11:42:56
Safe travels. Man that thing is bad.
Title: Re: trackin xv750
Post by: MJPriceisright on Aug 26, 2013, 11:14:31
what a weekend.. put lots of miles on the ole bat bike.  for those not following along closely, i rode from grand rapids to chicago and back this past weekend, and was an awesome trip.. was a little nervous because we had just gotten my buddies gs450 up and running, but hadnt put more than 50 or so miles on it.  but everything went awesome, we had such a great time.  we opted out of the highway route and decided to take the red arrow expessway that travels down and around right on the lake, got some pretty good pics along the way.  bike consumed 3.5 gallons on the trip down averaging about 55mph, and just over 4 gallons for the highway trip back, avg somewhere around 75mph.. still having some issues with the top end and the bike falling on its face, so i just took her easy and kept the bike in the sweet spot, no need to get crazy downtown chicago.. or anytime for that matter.  this week im going to set a goal to get my kickstand shortened, and start doing my homework on the starter rebuild, thing sounds just awful.  also going to figure out what im doing with my number plate. 
Title: trackin xv750
Post by: Drey6 on Aug 26, 2013, 11:39:51
Sounds like an awesome trip, glad it went smoothly. Still amazed every time I see your bike. Such a tough look from the front wheel to the rear.


Sent from my iPhone using Tapatalk - now Free (http://tapatalk.com/m/)
Title: Re: trackin xv750
Post by: yohan on Sep 02, 2013, 03:18:21
What is the gas tank model you used for this??
Title: Re: trackin xv750
Post by: MJPriceisright on Sep 02, 2013, 22:53:37
thanks drey I appreciate that.   really came together well,  I usually have to add 15 minutes to every trip for gas station Conversation with random people who wanna chat.   yohan that's a who knows what year xv920 tank.   82 I believe. 
Title: trackin xv750
Post by: Drey6 on Sep 04, 2013, 17:30:32
In about a month or so I'm going to bug the shit out of you, of course if you don't mind.  I just picked up a 1981 Virago 750 for $150
Title: Re: trackin xv750
Post by: DreadRock on Sep 04, 2013, 20:26:10
Man MJP that there is a bike to be proud of outstanding work !
Title: Re: trackin xv750
Post by: MJPriceisright on Sep 05, 2013, 01:51:44
thanks man I appreciate that.  yeah its definitely turned out great.   drew you're more than welcome to bother me,  call it pay it forward for I couldn't tell you how many phone calls I've made to RichArd over the past couple months. 
Title: trackin xv750
Post by: Drey6 on Sep 05, 2013, 02:49:32
I can imagine. I haven't subscribed to that many builds but Rich Ards and yours are two i always reference back to and keep an eye on.
Title: trackin xv750
Post by: 77SuzukiTS250 on Sep 05, 2013, 02:54:01
Good build man keep it going :)


Title: Re: trackin xv750
Post by: Rich Ard on Sep 05, 2013, 10:10:12
thanks man I appreciate that.  yeah its definitely turned out great.   drew you're more than welcome to bother me,  call it pay it forward for I couldn't tell you how many phone calls I've made to RichArd over the past couple months.

Ha. The real pisser is that after all this MJ's bike is cooler than mine!
Title: trackin xv750
Post by: Drey6 on Sep 05, 2013, 13:25:12

Ha. The real pisser is that after all this MJ's bike is cooler than mine!
But yours isn't done right? So it doesn't count yet. You still have time haha.
Title: Re: trackin xv750
Post by: MJPriceisright on Sep 05, 2013, 14:19:44
Ha. The real pisser is that after all this MJ's bike is cooler than mine!

let's count how many mouths I have to feed rich...  my only responsibility is to dress myself in the morning,  most of the time. 
Title: Re: trackin xv750
Post by: Rich Ard on Sep 05, 2013, 15:05:31
I like that I don't have to bother making my own excuses. Life is good.