DO THE TON

Blood Sweat Tears and Grease => Projects => Cafe Racers => Topic started by: huck_finn on Nov 23, 2017, 21:02:08

Title: 1974 CB360 - first bike/build
Post by: huck_finn on Nov 23, 2017, 21:02:08
Starting my build thread:


I am keeping a running list of everything I have bought for the bike in this Google Sheet (https://docs.google.com/spreadsheets/d/19TgpR56Ut1xY1G2MZN6lrKDmyMQ0CgNvseN1ABBe-5g/edit?usp=sharing). The list includes who I bought it from, how much I paid, and most of them have a direct link to the item. 95% of what I put on the bike came from Sparck Moto, Common-Motor, Dime City Cycles, and Bike Bandit.


Here it is just a few days before I bought it:
(https://farm5.staticflickr.com/4567/38602210341_c3d69398d2_c.jpg) (https://flic.kr/p/21P9qfH)



Loaded on the trailer and heading home:
(https://farm5.staticflickr.com/4579/37714056695_a0b0b79b9f_c.jpg) (https://flic.kr/p/ZsEp7P)




Tank pulled, getting an idea of what I just got myself into:
(https://farm5.staticflickr.com/4573/37714059825_c7c2d75b04_c.jpg) (https://flic.kr/p/ZsEq3M)




Starting to really understand that I don't have a clue what I am doing:
(https://farm5.staticflickr.com/4549/37714063305_9c56b7b254_c.jpg) (https://flic.kr/p/ZsEr5M)
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Nov 23, 2017, 21:06:32
Replaced screws on the engine with allen bolts. Nearly every screw on the bike turned to putty after trying to unscrew it all, so I got my money's worth from my screw extractor kit.


(https://farm5.staticflickr.com/4520/38545159766_726f996c82_c.jpg) (https://flic.kr/p/21J7277)
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Nov 23, 2017, 21:08:40
Got a new battery from Sparck Moto - the thought was to get one small enough to mount just about anywhere in any orientation. I still wasn't 100% sure on the direction I wanted to head with the bike (still not).


(https://farm5.staticflickr.com/4575/37714057845_648549a926_z.jpg) (https://flic.kr/p/ZsEpsD)
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Nov 23, 2017, 21:12:10
I also got a new harness from Sparck Moto - never been so excited to get a box of wires in my life.


(https://farm5.staticflickr.com/4527/26832105739_2781220f20_z.jpg) (https://flic.kr/p/GT4ydK)
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Nov 23, 2017, 21:17:25
The stock headers had been cut (by PO) to put on some old Yamaha mufflers. They were full of rust. I bought a few up-swept adapters from DCC and kept a few inches of pipe from the old mufflers to cobble together an exhaust. I wrapped the headers to try and disguise my Frankenstein-approach.


(https://farm5.staticflickr.com/4579/37714065435_896d405366_z.jpg) (https://flic.kr/p/ZsErHv)
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Nov 23, 2017, 21:22:54
I have ridden road bikes (cycles) for years - so I really wanted to keep a tucked riding position - plus it is easier on my back. I ended up getting a new MC after  fighting with the original. The bars were also an addition. I put new pads up front, along with new brake lines, & put new shoes on the rear.


The MC is still at a pretty steep angle, but it has been stopping on a dime for the past 400 miles.


(https://farm5.staticflickr.com/4167/34526645541_fc5f751aa3_z.jpg) (https://flic.kr/p/UB15Q6)
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Nov 23, 2017, 21:30:40
Here is how she stood at the beginning of the Summer (2017). I had pods on it at the time because I couldn't afford new stock filters.



(https://farm5.staticflickr.com/4577/38535811022_dc0283c944_z.jpg) (https://flic.kr/p/21Hh73S)


(https://farm5.staticflickr.com/4581/24695393618_ebb249b258_z.jpg) (https://flic.kr/p/DCfm9A)
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Nov 23, 2017, 21:42:14
I found a couple of stock air boxes on eBay, which had the original filters.

(https://farm5.staticflickr.com/4551/38567435121_ae52b26cd6_z.jpg) (https://flic.kr/p/21L5bMX)

(https://farm5.staticflickr.com/4551/24695369338_3da5ecb6c9_z.jpg) (https://flic.kr/p/DCfdVY)

(https://farm5.staticflickr.com/4531/38567436001_56fa81bf65_z.jpg) (https://flic.kr/p/21L5c48)

(https://farm5.staticflickr.com/4586/38510834796_69bf90848f_z.jpg) (https://flic.kr/p/21F56uh)

(https://farm5.staticflickr.com/4544/38535781412_143436b0d6_z.jpg) (https://flic.kr/p/21HgXfm)

(https://farm5.staticflickr.com/4555/24695369808_c0d277338e_z.jpg) (https://flic.kr/p/DCfe55)

(https://farm5.staticflickr.com/4555/38567435201_ff72f60c40_z.jpg) (https://flic.kr/p/21L5bPk)


Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Nov 23, 2017, 21:43:30
And all along the way...fun stuff like this happened.


(https://farm5.staticflickr.com/4540/38510834036_2ba0471a6e_z.jpg) (https://flic.kr/p/21F56gb)
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Nov 23, 2017, 21:48:51
I just added a new bullet style headlight bucket (trying to work out how to keep it off the brake line). I pulled the H4 bulb out of the light it came with and replaced it with a Native H4 from ADV Monster. I took these shots on Tuesday night before we left for my in-law's house for Thanksgiving. I noticed the light was bouncing around on my ride home - found out that the left mounting bolt worked its way out at some point on the ride. I am an idiot for not double checking how tight it was before I left.


(https://farm5.staticflickr.com/4583/24729992528_df50dc9f04_z.jpg) (https://flic.kr/p/DFiFcw)

(https://farm5.staticflickr.com/4541/37714070025_6183bd9ca3_z.jpg) (https://flic.kr/p/ZsEt5D)
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Nov 23, 2017, 21:53:00
I noticed that my left-side muffler was tilted before riding to work on Tuesday morning - found a crack in the mount on the muffler - had to adjust things a little to be able to ride that day. Not sure what I am going to do with it in the long run - but I am eyeing a Mac 2-into-1 exhaust.

And despite living in the Southeastern US - it has been dropping into the 30's. But I refuse to give up riding it just yet.

(https://farm5.staticflickr.com/4582/37714069085_2b7bf88810_z.jpg) (https://flic.kr/p/ZsEsNr)
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Nov 23, 2017, 22:04:59
My right cylinder wasn't firing at all last week - which it had been running just fine previously. Plugs were good, fuel was flowing, had just replaced the coils (new condensor was added last Fall). After I pulled the carbs I found that the slide on my right carb was stuck.

I very gently and patiently got it out of the carb body - but I couldn't feel any burrs in the carb body (slide from left carb moved up and down in it just fine). I couldn't feel any burrs or see any deformation on the right slide either. But I grabbed some sand paper and worked it around the slide and few times and tried it again. After about 20 rounds of that, it is moving just like it should. I was terrified of taking metal off that would affect how the carb worked.

I had cleaned the carbs this past Fall using a boiling pot of lemon juice - worked like a charm, but had deal with the chalky-residue on my hands when working with them for a while.
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Nov 23, 2017, 22:09:14
I am still playing with my jetting and float heights - right now here is where things stand:

Primary: 68
Secondary: 108
Slow: 35
Float heights are set to 19mm

I was running rich at 100 secondary and 18mm - I have been working my way up to where I am now. Haven't pulled the plugs to see how things are lining up since adjusting to my current secondary/float height.
Title: Re: 1974 CB360 - first bike/build
Post by: trek97 on Nov 23, 2017, 22:45:06
Great to see youre on it huck.

I rebuilt a fresh pair of carbs for mine.  You may find some useful info here...
http://www.dotheton.com/forum/index.php?topic=27417.msg885289#msg885289

I got my floats set up at 20.5mm w 100 secondaries.  Ive ridden it a few times and she's performing well.
Didn't take the time to check it w the O2 sensors.  Bad weather set in early here this year.

Check the orientation of the vent holes in the slides are on the filter side.  If the slides get twisted around it can cause them to hammer.  This will deform them and make them stick.
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Nov 23, 2017, 23:05:19
Thanks Trek - the diaphragm on the problem slide is an aftermarket unit (stock had a tear in it), which doesn't have the orientation tab. I made sure to get it in the right orientation when I buttoned it back up...hopefully it doesn't get twisted around in the carb.

I feel like I have been chasing my tail with jets and float heights.

I am about to break everything back down and see if I can't get the frame, swing arm, and triple blasted/painted before things warm back up. So it might be a while before I get back to my carbs.
Title: Re: 1974 CB360 - first bike/build
Post by: trek97 on Nov 28, 2017, 20:05:23
I gotcha bookmarked.

Also, My bike was utterly un-ridable (rich) w the JBM diaphragms.  I coughed up the $ for new Honda's.  It ran great instantly.
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jan 08, 2018, 10:30:41
I broke down the bike over the weekend - everything was straightforward - used lots of zip-loc bags to label everything. I hope to have the frame and a few other pieces sent to paint very soon.

(https://farm5.staticflickr.com/4647/24709102427_a7445fb75b_c.jpg) (https://flic.kr/p/DDsBin)

(https://farm5.staticflickr.com/4592/25706652008_f36db075b6_c.jpg) (https://flic.kr/p/FaBj35)

(https://farm5.staticflickr.com/4644/24709097357_797516c719_c.jpg) (https://flic.kr/p/DDszMX)
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jan 08, 2018, 10:36:44
I got a few new pieces in the mail right after Christmas, including a new stator from Rick's, new clutch springs & friction plates, and a couple of mini gauges. I will post some pics of all the new goodies after I get back to the house tonight. But here is a shot of the new MAC 2-into-1 exhaust and the Tarrozi clip-ons.

(https://farm5.staticflickr.com/4640/38868195644_aa127a74e8_c.jpg) (https://flic.kr/p/22dDEqd)
Title: Re: 1974 CB360 - first bike/build
Post by: trek97 on Jan 09, 2018, 06:27:14
Nice bud, once adjusted to suit you, those Tarozzi bars should be a big improvemnt to your riding comfort over the clubmans.
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Jan 09, 2018, 13:02:13

I am keeping a running list of everything I have bought for the bike in this Google Sheet (https://docs.google.com/spreadsheets/d/19TgpR56Ut1xY1G2MZN6lrKDmyMQ0CgNvseN1ABBe-5g/edit?usp=sharing). The list includes who I bought it from, how much I paid, and most of them have a direct link to the item. 95% of what I put on the bike came from Sparck Moto, Common-Motor, Dime City Cycles, and Bike Bandit.
Starting to really understand that I don't have a clue what I am doing:
(https://farm5.staticflickr.com/4549/37714063305_9c56b7b254_c.jpg) (https://flic.kr/p/ZsEr5M)

LOL, probably how 90% of people on this site started.
If you intend to keep bike, NEVER count up just how much it's cost, if you intend to sell it at some time, NEVER count up how much it's cost, you'll be crying when you see how much of a loss you have   ;)
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Jan 09, 2018, 13:06:58
Thanks Trek - the diaphragm on the problem slide is an aftermarket unit (stock had a tear in it), which doesn't have the orientation tab. I made sure to get it in the right orientation when I buttoned it back up...hopefully it doesn't get twisted around in the carb.


It won't.
 You need to drill the lift holes to 3.8mm with JBM diaphragms. It's a bad idea to do just one, better to find a good (or new) OEM or change both
Title: Re: 1974 CB360 - first bike/build
Post by: 1fasgsxr on Jan 09, 2018, 13:09:50
LOL, probably how 90% of people on this site started.
If you intend to keep bike, NEVER count up just how much it's cost, if you intend to sell it at some time, NEVER count up how much it's cost, you'll be crying when you see how much of a loss you have   ;)


Try this again...never read a more true statement right there Crazy !!
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jan 10, 2018, 10:03:40
LOL, probably how 90% of people on this site started.
If you intend to keep bike, NEVER count up just how much it's cost, if you intend to sell it at some time, NEVER count up how much it's cost, you'll be crying when you see how much of a loss you have   ;)

My wife keeps asking about how much I have invested in the bike - I just hope she never finds out.
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jan 10, 2018, 10:04:43
It won't.
 You need to drill the lift holes to 3.8mm with JBM diaphragms. It's a bad idea to do just one, better to find a good (or new) OEM or change both

If I go with OEM, I take it that I don't need to worry about drilling the lift holes?
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jan 10, 2018, 10:07:34
My top clamp from Cognito Moto came in last week - I had them add the integrated LED's and drill out mounts for my gauges. The picture doesn't do it justice - it is a really nice piece. The gauges will come out from the clamp about an inch - I tucked them in close for the picture just to keep them from rolling around.


(https://farm5.staticflickr.com/4627/39584157442_a5d1f3a988_c.jpg) (https://flic.kr/p/23iV9V9)
Title: Re: 1974 CB360 - first bike/build
Post by: irk miller on Jan 10, 2018, 12:15:33
I guess I haven't joined this party yet. 
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Jan 12, 2018, 15:37:06
My wife keeps asking about how much I have invested in the bike - I just hope she never finds out.

Better pray rather than hope  ;)
Don't drill lift holes with stock diaphragms,it will have a bad stumble as slides lift too fast

My top clamp from Cognito Moto came in last week - I had them add the integrated LED's and drill out mounts for my gauges. The picture doesn't do it justice - it is a really nice piece. The gauges will come out from the clamp about an inch - I tucked them in close for the picture just to keep them from rolling around.


(https://farm5.staticflickr.com/4627/39584157442_a5d1f3a988_c.jpg) (https://flic.kr/p/23iV9V9)
That is a nice piece.
How does it clamp fork leg and how does it compare to original 'dogleg' top yoke?
Being flat I expect you have to slide fork tube up about an inch or so which lowers front end.
Title: Re: 1974 CB360 - first bike/build
Post by: Sonreir on Jan 12, 2018, 15:39:06
Following along.
Title: Re: 1974 CB360 - first bike/build
Post by: MiniatureNinja on Jan 13, 2018, 13:51:45
lookin good, any plans for changing up the seat ? those lower clipons will reall want a lower seating position I think
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jan 15, 2018, 12:16:21
How does it clamp fork leg and how does it compare to original 'dogleg' top yoke?
Being flat I expect you have to slide fork tube up about an inch or so which lowers front end.

From an aesthetics view, I would love to have the front end lowered a bit. But I don't want to get into cutting my fork springs. To clamp onto the forks there is an allen bolt inside the clamp itself. Cognito Moto's site has some good shots of the clamp. (https://cognitomoto.com/products/billet-top-triple-clamp-cb350k-71-74-cb360-74-76-cb350f-72-74-cb400f-75-77)
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jan 15, 2018, 12:20:30
lookin good, any plans for changing up the seat ? those lower clipons will reall want a lower seating position I think

I plan on building a completely new seat - carving up some green blocks of foam and glassing it. I did cut a few bits off the frame (seat hinge, seat lock, and side cover mounts) to help the new seat sit flush.
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jan 15, 2018, 12:57:19
And because I like to do things the hard way...I am going to try and build a new air intake to clean up my triangle. I am not trying to go for a naked triangle look, but I do want to add some negative space in there. I found this book searching around on Google (https://books.google.com/books?id=A9KsF2rtSmQC&lpg=PP10&ots=iabblDvWvd&dq=leon%20moss%20motorcycles&pg=PA28#v=onepage&q&f=false) to help me get my head around the concepts involved with air flow and fuel intake.

And since I have access to a full lab of 3D printers, I should be able to develop something that comes pretty close to the stock airflow. I have been look at photos from Peter Cabrel's 360 build and trying to figure out if the intake he built would match the stock setup.

(https://farm3.staticflickr.com/2570/4117205428_284db8dd52_z.jpg?zz=1) (https://flic.kr/p/7gPKJu)
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Jan 15, 2018, 15:43:39
I don't remember why I didn't buy that book, looked at first edition years ago though.
Probably easier to just draw something out then take a look at lengths and diameters, stock works out somewhere close to 25" IIRC? When you 'go short with K&N filters carbs need some major working over. Two stoke 'pulse tuning' isn't the same as 4stroke though, you will go nuts trying to use any of the formula's in that book. (there are simple reasons but I'll let you figure it out  ;D )
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jan 15, 2018, 16:32:52
More than likely I would build out a box and use some UNI foam as the filter. I am not all that interested in screwing around with my carbs right now. I just plan on replacing the diaphragms with some OEMs, get a couple of new float needles (springs are shot on mine), and making sure that the diaphragm spring is within factory spec.
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jan 18, 2018, 10:31:20
I haven't been able to find just the diaphragms for my carbs, I can only find the entire piston+diaphragm+spring. BikeBandit has them for around $80...but I am seeing that DCC has their Mikuni 28's for only $87.

Is it worth it to keep fooling with my stock carbs or just go ahead and look at getting a set of Mikuni carbs? My carbs are clean, but they do have some corrosion around the slow & main jets.
Title: Re: 1974 CB360 - first bike/build
Post by: irk miller on Jan 18, 2018, 10:56:24
I haven't been able to find just the diaphragms for my carbs

http://www.common-motor.com/honda-cb360-carb-diaphragm
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jan 18, 2018, 12:11:47
I am trying to find Honda OEM diaphragms so I don't have to drill anything out on my carbs (per CrazyPJ's advice).
Title: Re: 1974 CB360 - first bike/build
Post by: irk miller on Jan 18, 2018, 12:28:58
Those replace OEM.  There's no such thing as OEM anymore.
Title: Re: 1974 CB360 - first bike/build
Post by: WhyNot on Jan 18, 2018, 16:43:08
Those replace OEM.  There's no such thing as OEM anymore.

Of which I'm finding that fact out rather quickly.

And the prices, they be on the rise for this vintage stuff.

Nice build so far, just jumped in to watch.
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Jan 18, 2018, 18:06:53
Diaphragms have never been available as a separate part from Honda but new ones are available as it's same size as something they still make.
It is one of the reasons I like Honda, until a few years ago they always stated they would keep a Honda on the road by supplying parts for any bike they made (consumer production models of course, not race of prototypes)
You can find stories where trainee's at Honda handmade parts foe 'obsolete' bikes
I am a little surprised they didn't start making cam chain tensioner's but as 'after-market now makes them there isn't the need
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jan 24, 2018, 11:26:01
I grabbed the float height tool specs from Trek and printed out a few - they came out perfectly. I printed 19.5, 20.5, and a 21.5 heights.


(https://farm5.staticflickr.com/4621/39842671452_0476ab38fc_c.jpg) (https://flic.kr/p/23GL78f)
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Jan 24, 2018, 11:42:06
You won't need 21.5 unless your 6,000ft or more up or use E85.
 21mm is my recommended float height for E10 or modified carbs although 20.5mm is very slightly richer everywhere if you need it due to exhaust length/modifications
Title: Re: 1974 CB360 - first bike/build
Post by: advCo on Jan 24, 2018, 11:43:24
I grabbed the float height tool specs from Trek and printed out a few - they came out perfectly. I printed 19.5, 20.5, and a 21.5 heights.


(https://farm5.staticflickr.com/4621/39842671452_0476ab38fc_c.jpg) (https://flic.kr/p/23GL78f)

Those look familiar!  ;)
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jan 24, 2018, 11:59:52
Here are a few shots of the corrosion I was talking about. The other carb is in good shape, but I am not sure if I will be chasing my tail trying to get this one working the way it should.


(https://farm5.staticflickr.com/4612/39842671022_eb051be174.jpg) (https://flic.kr/p/23GL6ZQ)


(https://farm5.staticflickr.com/4626/39842672022_7bcafa8fb3.jpg) (https://flic.kr/p/23GL7i5)


(https://farm5.staticflickr.com/4697/39842672702_73caa9a745.jpg) (https://flic.kr/p/23GL7uN)

Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jan 24, 2018, 13:46:37
Those look familiar!  ;)

Can't thank you enough for working these out - the dimensions are dead on.
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Jan 24, 2018, 17:43:12
No need to worry about the corrosion as long as nothing is 'pin-holed' I've worked on much worse that worked fine
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jan 24, 2018, 22:50:18
No need to worry about the corrosion as long as nothing is 'pin-holed' I've worked on much worse that worked fine
That is good news for sure.
Title: Re: 1974 CB360 - first bike/build
Post by: advCo on Jan 25, 2018, 22:24:15
If nothing else, just Be careful tightening the jets into those corroded castings. A Yamaha  I recently sold had similar corrosion and the main jet had been over tightened and cracked the casting.


Sent from my iPhone using DO THE TON
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Jan 25, 2018, 23:12:02
Pretty sure Mikuni use a 'stock' zinc based alloy which does seem to be more brittle than the Kei-Hin stuff.?
I've done XS400's with less corrosion but more damage plus a few XS650's and Kawasaki's have needed at least 1 'new ' carb.
Maybe Kei-Hin use a different 'proprietary' zinc alloy? It does seem more 'malleable' when I've been doing carb mods compared to the Mikuni's I've done (only GS and GSX-F air / oil cooled range, everything else is 'too new'  ;D )
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jan 26, 2018, 18:26:36
I put the new friction plates & springs on last night (after soaking the plates in oil for 24hr). I also bolted on the new stator. There isn't a whole lot more to do with the engine right now since I am not going to bore it out. Anything that needed replacing/fixing was done while still on the frame.

My frame and a few other pieces are in the shop for paint - having the paint/bodywork program at the community college where I work do it for me. All I needed to do was pay for the paint. They do a good job, but you just can't be in a hurry to get things back.

I think I remember seeing some pictures (can't find via search) on how to dremel out the metal oil guide (right crankcase) to help with oil flow. Do I need to watch out for anything if I give it a go?
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Jan 29, 2018, 17:14:21
Just check there is enough support for the spring inside it and make sure you don't lose spring tension on retaining clip when it's time to re-assemble.
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Feb 10, 2018, 14:45:30
Printed out a test plate to make sure my measurements were good for my air box/filter. I was thinking of creating a design that is similar exactly like ones I have seen for 750's (https://cognitomoto.com/products/cb750-air-intake-box-sohc-and-dohc?variant=11585137601).

Where the plate mates up with the intake is a really snug fit, but I have no idea if it will leak any air. I will have to wait until I get everything back together. Frame will be back from paint next week.

If anyone has done something similar for their 360, I would love to hear how it turned out.


(https://farm5.staticflickr.com/4770/40189334151_286a2281dc.jpg) (https://flic.kr/p/24eoQSk)


(https://farm5.staticflickr.com/4700/28408942569_52da45e9ce.jpg) (https://flic.kr/p/KhpfSD)


(https://farm5.staticflickr.com/4695/28408942989_659ece6b5c.jpg) (https://flic.kr/p/KhpfZT)
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Feb 10, 2018, 23:41:16
That's kinda cute.
You really want a radius on edge though, 3/8" seems to be about minimum for good flow. ( there are other radii and angles for max flow rate)
Sharp edge acts as a restrictor at high airflow
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Feb 11, 2018, 13:55:47
That's kinda cute.
You really want a radius on edge though, 3/8" seems to be about minimum for good flow. ( there are other radii and angles for max flow rate)
Sharp edge acts as a restrictor at high airflow

When you are referring to the edge, which edge do you mean? My thought behind going this route is to reduce the amount of space the air box takes up, while maintaining the same amount of filter surface area.


Sent from my iPhone using DO THE TON (http://r.tapatalk.com/byo?rid=89466)
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Feb 12, 2018, 12:45:20
The edge where tube meets plate. As your 3D printing it, it should be simple enough to make the 'tube' 7 degree internal angle to carb mouth and radius onto plate. Make one of those and I'll try it (or send file and I'll get it printed)
Title: Re: 1974 CB360 - first bike/build
Post by: trek97 on Feb 13, 2018, 08:31:46
Someone on here has done this very setup in the past.  (I thought it was bucky685, but I cant find anything about it.)
He found a "ready made" filter to fit his custom base perfectly.  Volkswagen Maybe???

I will keep searching.
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Feb 14, 2018, 16:54:47
I just want the custom base with the mods I outlined
Title: Re: 1974 CB360 - first bike/build
Post by: Sonreir on Feb 14, 2018, 16:59:21
Yup. Radius the point where the intake tract meets open (or airbox) air. A raise bellmouth that sits inside the airbox is effective.
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Feb 14, 2018, 19:35:59
Yep, that would be even better but way more difficult to print. What filament are you using as temps can easily get around 200f
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Feb 17, 2018, 16:08:10
I am not sure what the standard filament is, but I do know they have ABS plastic, carbon fiber, kevlar, and onyx. The onyx produces the most finished look out of them all. The carbon fiber and kevlar filaments use nylon as a binder.

I haven't had a chance to work on the design in a while - work has gotten busy and I haven't been taking lunch to head down to the lab.

I did get my frame back from paint. Everything I got back looks good, with the exception of the rear brake cover, which came out with a run on it. The kid working on everything repainted it three times, but just couldn't get it to come out. I suppose I got what I paid for. More than anything I am glad rust won't be a concern for the foreseeable future.


(https://farm5.staticflickr.com/4759/38514333050_4f63393619.jpg) (https://flic.kr/p/21Fo2p1)


(https://farm5.staticflickr.com/4770/25452043497_43d467d3bc.jpg) (https://flic.kr/p/EM7nNa)



When I get back from visiting in-laws I will need to put on the new steering bearings before reassembling, and taking final measurements for the air filter and seat pan.
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Feb 18, 2018, 16:14:54
It looks like onyx has a heat deflection rating of just over 290 f (145 c).
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Feb 19, 2018, 17:01:33
290f is probably pushing the limit as there is a lot of heat radiated from cylinder head. Saying that though, 'plate' will be around 6~7 inches away from head and be somewhat shielded by carbs. I knew I should have put an intake probe on 378 motor   ;D
Title: Re: 1974 CB360 - first bike/build
Post by: Sonreir on Feb 21, 2018, 11:23:07
You should be OK. There's enough air flow that you won't even get close to 290į.
Title: Re: 1974 CB360 - first bike/build
Post by: Coopacoopacoopa on Feb 21, 2018, 12:04:38
Kinda sounds like something wasn't quite prepped right if the paint kept running on him. Can't say he didn't try, 3 times over I would have had enough too.  :o

Coming along nicely! 
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Mar 06, 2018, 13:50:42
Been slow going the past few weeks. On my top clamp I had to use a sanding drum on the end of my drill to grind down where the anodizing process decreased the inside diameter. It was only about .10 mm when measuring left to right. Front to back it was dead on 33mm. And just in case anybody is curious how it grips hold of my forks, I am adding a short video to show how it tightens as well as the clamp used to do so.


(https://farm5.staticflickr.com/4801/40614851472_ed7c630f62.jpg) (https://flic.kr/p/24SZJkS)


(The video should play in my flickr account if it doesn't want to here)
(https://farm5.staticflickr.com/4751/26785573368_c14df5ea7d.jpg) (https://flic.kr/p/GNX4Lu)


(https://farm5.staticflickr.com/4796/39947091414_45e0473594.jpg) (https://flic.kr/p/23RZhxq)




And I freaking snapped the front stud bolt on my right fork when tightening down the front wheel - torque wrench was set to spec, rear bolt didn't give me any problems - but the front just snapped. I have replacements on order while I try to get the broken one out of there. It is going to take some heat.


(https://farm5.staticflickr.com/4793/40614850892_8f3b72dec1.jpg) (https://flic.kr/p/24SZJaS)



Title: Re: 1974 CB360 - first bike/build
Post by: Sonreir on Mar 06, 2018, 13:52:59
I highly recommend a stud extractor and impact wrench.
Title: Re: 1974 CB360 - first bike/build
Post by: MiniatureNinja on Mar 06, 2018, 14:17:41
make sure you are tightening the front bolt first, its the one that sits flush - the rear should have a gap and is tightened AFTER the front one is torqued.
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Mar 06, 2018, 18:28:39
I highly recommend a stud extractor and impact wrench.

If I can't get it out tonight - I am going to bring up to work and see if the machine shop can't get it out for me.
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Mar 07, 2018, 17:22:59
That stud looks like it had been stretched previously, there is still slight 'necking' showing in picture.
Remove fork top nut and get the area around stud real hot, it may be Loctited in. I think temp needs to be minimum of 230f ?
If it's hot enough, a vice grip will loosen it up, you shouldn't need to re-drill anything but a good 8x1.25 tap should be used to clean threads
 A good stud extractor is EXPENSIVE, the only one worth a damn is the Snap-On CG500, I paid almost $110.00 for mine in 2005~6 , wish I'd seen one 30 yrs ago would have saved me a lot of grief on various motors 
Title: Re: 1974 CB360 - first bike/build
Post by: irk miller on Mar 07, 2018, 18:40:29
My stud extractor cost $10.  That thing is at least an inch above the surface.  No need for specialized tools.

(https://www.jensentools.com/images/p/191-806.01_s500_p1.jpg)
Title: Re: 1974 CB360 - first bike/build
Post by: Sonreir on Mar 07, 2018, 18:41:47
That was my go to for a while, until I couldn't get the studs out of the T500 upper cases.
Title: Re: 1974 CB360 - first bike/build
Post by: Coopacoopacoopa on Mar 07, 2018, 23:54:13
There's something to be said for correct tools. Stud extractors work SO well. It could have broken off flush with end of the fork.  :-X
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Mar 08, 2018, 12:49:25
My stud extractor cost $10.  That thing is at least an inch above the surface.  No need for specialized tools.


(https://www.jensentools.com/images/p/191-806.01_s500_p1.jpg)

I mentioned that first, but, if you intend to re-use studs it isn't the best thing to use
Title: Re: 1974 CB360 - first bike/build
Post by: irk miller on Mar 08, 2018, 13:13:53
I mentioned that first, but, if you intend to re-use studs it isn't the best thing to use

I typically don't reuse broken studs.  Also, the FSM and Haynes manuals for the F650 I built tell you to use pliers to remove the studs so you can get the head and cylinder off the bottom end during a rebuild.
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Mar 08, 2018, 21:35:41
I've had to do a few crankcase replacements over the years, cases don't generally come with studs so you have to swap them over. One of the techs did a Kawasaki 600 using 'pliers/vice grips' method. He was a bit dumb, when the first stud snapped at 18ft/lbs, he went around the rest of the head and broke all the others
 Cost him a bunch of time and money.
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Mar 14, 2018, 14:53:21
I ended up taking the lower down to the auto-repair department - it took a vice and a couple of guys to get that thing out of there. Got the new studs (went ahead and ordered four) in over the weekend and was able to get things back on track.


(https://farm5.staticflickr.com/4772/40100108954_2559e93881.jpg) (https://flic.kr/p/246vxjS)
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Mar 14, 2018, 15:04:46
I got some work done over the weekend - but nothing went as smoothly as I had hoped.



(https://farm5.staticflickr.com/4794/38999474840_055339bf9e.jpg) (https://flic.kr/p/22qfv9C)


I got to clean this mess up when my oil drain pan couldn't keep up with the flow from my truck.
(https://farm5.staticflickr.com/4771/38999474060_d1c50294f1.jpg) (https://flic.kr/p/22qfuVb)


I was able to drop the engine back in without scratching my new paint or breaking my back.
(https://farm5.staticflickr.com/4783/40767708262_49611b6f79.jpg) (https://flic.kr/p/257vakL)




Took some negotiating with my brake pedal to create some clearance between it and the 2-into-1 Mac exhaust I am mounting. I used a small propane torch to heat it up a bit, threw it into my vice and was able to get just enough room to keep it from hitting the pipes when I release the pedal.
(https://farm5.staticflickr.com/4795/40767707792_4c7dc6759e.jpg) (https://flic.kr/p/257vacE)


(https://farm5.staticflickr.com/4778/40767707472_569601aae2.jpg) (https://flic.kr/p/257va79)







Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Mar 14, 2018, 15:08:36
I repainted the brake pedal using some black caliper paint. I let it sit for a few hours and then baked it for a little over an hour with my front calipers that I had painted earlier in the week. The paint will probably flake off sitting that close to the exhaust. I did get my front brake back together, and reinstalled the front fender with out scratching the paint on my forks.
Title: Re: 1974 CB360 - first bike/build
Post by: advCo on Mar 14, 2018, 15:15:29
I repainted the brake pedal using some black caliper paint. I let it sit for a few hours and then baked it for a little over an hour with my front calipers that I had painted earlier in the week. The paint will probably flake off sitting that close to the exhaust. I did get my front brake back together, and reinstalled the front fender with out scratching the paint on my forks.

You'll be fine with the paint near the exhaust. I used spray can epoxy paint within 1/2" of the headers on my XL with 0 issues.
Title: Re: 1974 CB360 - first bike/build
Post by: MiniatureNinja on Mar 14, 2018, 16:54:37
are you missing the return stop for the rear brake pedal or was there just not enough adjustment to keep it from hitting?
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Mar 14, 2018, 17:30:53
are you missing the return stop for the rear brake pedal or was there just not enough adjustment to keep it from hitting?

Not enough room to adjust. If I brought the stop forward (pushing the pedal down) it shortened the activation distance too much once I cleared the pipes. I tried to compensate by adjusting the brake rod, but there just wasn't enough room between the two that would keep the pedal from hitting the pipes and let my rear wheel spin without dragging on the pads.
Title: Re: 1974 CB360 - first bike/build
Post by: MiniatureNinja on Mar 16, 2018, 13:32:06
Not enough room to adjust. If I brought the stop forward (pushing the pedal down) it shortened the activation distance too much once I cleared the pipes. I tried to compensate by adjusting the brake rod, but there just wasn't enough room between the two that would keep the pedal from hitting the pipes and let my rear wheel spin without dragging on the pads.

bummer. I've been hearing and seeing more and more that the MAC stuff isn't "bolt on" like they say it is
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Mar 17, 2018, 17:47:12
It is a bolt on piece, BUT, you will have to 'adjust' with a 4x2 as a lever. May need to do it a few times after some heating cycles. Eventually the extra stresses will be relieved and you can force it into a better position. Of course, it would be a lot better if fitted properly first time around.
 Pipe is probably designed for a CJ brake and just listed for CB as ports are in the same place. Should be possible to fit CJ parts but PITA to get back into everything. I have some Yamaha XS 650 brake prts that look very similar to CJ but with more offset in pedal. Don't have dimensions though to check diameters will fit CB frame
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Mar 18, 2018, 16:29:02
The pipes donít allow for the stock exhaust joint(?) to be mounted - so there is a sizable gap between where the engine stops and the plate used to secure the pipe begin.


Sent from my iPhone using DO THE TON
Title: Re: 1974 CB360 - first bike/build
Post by: irk miller on Mar 18, 2018, 17:13:17
I had the Mac 2-into-1 on my first 360.  It was hell getting it installed every time.  I could always make it work eventually, but not without a fight.
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Mar 26, 2018, 20:25:39
I shortened a few of my wiring runs, and had to extend a few (connections on the new gauges were way too short) this past weekend. And I learned to hate those tiny LED wires. I soldered some of the original wiring to the taillight, but my wire strippers only go down to 20 - so I had to very carefully strip them using a straight razor. Even with good solders, I am not 100% sure they aren't going to break. The wiring is just too small and cheap. The LEDs on my top clamp from Cognito Moto are a lot stronger - so no worries there. I am going to finish them up tonight.


(https://farm1.staticflickr.com/788/26167265747_8c93370963.jpg) (https://flic.kr/p/FSj5sg)
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Mar 26, 2018, 23:53:17
For stationary projects I've used telephone or CAT5 wire. That stuff is really thin and breaks pretty easy. For motorcycle wiring I usually visit local supplier and buy new 18~28 Ga wire.depending on where and how it's going to be used
Title: Re: 1974 CB360 - first bike/build
Post by: Sonreir on Mar 28, 2018, 13:26:12
I've never been a fan of those thin wires that some manufacturer's use. Soldering is OK, but crimping is better. In either case, make sure you have the thicker wires secured somewhere to the frame to avoid putting tension on the thinner portions.
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Apr 04, 2018, 18:23:46
I couldn't believe it, but after getting everything back together last night, it fired up on the first kick. I strutted around the garage like I had just cured cancer. I am still working on the air filter design - sitting down with a guy tomorrow night to try and get it ready to print - same with my seat.

I am having trouble with my neutral light not working. Is there a trick to connecting the neutral switch? I ran a wire straight from the neutral switch to my harness, which is running directly to my gauge light. I stripped a little bit of the wire coating, pushed back the little spring on the neutral switch and ran the wire through the hole and wrapped it around one time.

And the LEDs on my top clamp are flickering when it is running. I may have done something stupid, but I tied all the ground wires together from the top clamp's LEDs since I only had a one open spot on my harness. My LED headlight and tail light aren't flickering though - they are running strong.

Title: Re: 1974 CB360 - first bike/build
Post by: MiniatureNinja on Apr 04, 2018, 18:39:03
I couldn't believe it, but after getting everything back together last night, it fired up on the first kick. I strutted around the garage like I had just cured cancer. I am still working on the air filter design - sitting down with a guy tomorrow night to try and get it ready to print - same with my seat.

I am having trouble with my neutral light not working. Is there a trick to connecting the neutral switch? I ran a wire straight from the neutral switch to my harness, which is running directly to my gauge light. I stripped a little bit of the wire coating, pushed back the little spring on the neutral switch and ran the wire through the hole and wrapped it around one time.

And the LEDs on my top clamp are flickering when it is running. I may have done something stupid, but I tied all the ground wires together from the top clamp's LEDs since I only had a one open spot on my harness. My LED headlight and tail light aren't flickering though - they are running strong.

make sure you dont have some sort of backfeed through those lights - lights illuminating when they shouldn't is a good indication of a short.
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Apr 05, 2018, 14:42:25
Neutral is a grounding switch, you have power going to light then out of light to switch
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Apr 07, 2018, 21:51:03
That fixed the neutral light - too bad the green LED is toast for it now. Neutral lit up when testing with the other colors on my clamp.

I thought it might also help with the flickering, but no luck. Again, the lights are fine when the bike isn't running - but as soon as it starts up they begin to flicker at a low level. As I increase the throttle they begin flickering faster and brighter.

I think I remember reading if the harness is too close to my coils it can cause some flickering. I moved my tank and played around with the harness while it was running - and I could get it to stop flickering but only in a certain position, and about five inches away. I tried to shield the harness by wrapping some aluminum foil around it (just to test) - but flickering continued.

I pulled the rear LED lighting off, disconnected LED headlight, and pulled out all of the connections running to my top clamp. After identifying my ground for the neutral light, I separated it out and one by one tested each of the connections with the bike running. Didn't matter what I did, it kept flickering.

All of my grounds are connected to the frame, with the exception of the one coming off my stator - it is going straight to the battery.

The positive side of the stator (with an inline fuse) is going straight to positive side of my battery, and I also have the ignition switch (with an inline fuse) stacked with the stator on the terminal.

Am I just really screwing something up?



Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Apr 07, 2018, 22:11:33
The filter I was working on won't fit without relocating my battery - so in an effort to get back on the road ASAP, I am shelving it for now. I have drawn up a new battery box that will keep my EarthX battery snug and reduce a fair amount of weight. Here are a few screenshots of my progress on the filter and the current state of the battery box.

The filter wall is solid - but only because I didn't feel like adding a mesh design since I am hitting pause.


(https://farm1.staticflickr.com/811/41263893452_1251080caa_n.jpg) (https://flic.kr/p/25SmeUQ)


(https://farm1.staticflickr.com/865/39497258060_99d1826314_n.jpg) (https://flic.kr/p/23beLKW)


(https://farm1.staticflickr.com/899/41263893282_2c81acff3e_n.jpg) (https://flic.kr/p/25SmeRU)


(https://farm1.staticflickr.com/884/40593013384_039cbdd543_n.jpg) (https://flic.kr/p/24R4ND7)


(https://farm1.staticflickr.com/877/40410917615_0c62084184_n.jpg) (https://flic.kr/p/24yYvUT)]


(https://farm1.staticflickr.com/871/40593013344_e47ce17900_n.jpg) (https://flic.kr/p/24R4NCq)



Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Apr 07, 2018, 22:13:12
(https://farm1.staticflickr.com/886/40593013334_7fab541136_n.jpg) (https://flic.kr/p/24R4NCf)

(https://farm1.staticflickr.com/902/40410917375_ff8df70ea6_n.jpg) (https://flic.kr/p/24yYvQK)

(https://farm1.staticflickr.com/804/40593013274_d96fd15d63_n.jpg) (https://flic.kr/p/24R4NBd)

Title: Re: 1974 CB360 - first bike/build
Post by: MiniatureNinja on Apr 08, 2018, 00:14:49
cool designs! I love fusion and it's so easy to create stuff. I wish I could make a whole bike in Fusion so I can really see how it would work and feel.
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Apr 08, 2018, 18:19:04
cool designs! I love fusion and it's so easy to create stuff. I wish I could make a whole bike in Fusion so I can really see how it would work and feel.

It drove me crazy trying to work in Fusion at first (graphic/web designer is my full-time gig). Thankfully I was able to sit down and learn a few things from a drafting instructor.
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Apr 10, 2018, 23:26:53
I had the Mac 2-into-1 on my first 360.  It was hell getting it installed every time.  I could always make it work eventually, but not without a fight.

Irk - you don't happen to recall what your jetting was for when you had your Mac, do you?
Title: Re: 1974 CB360 - first bike/build
Post by: irk miller on Apr 11, 2018, 00:59:47
Irk - you don't happen to recall what your jetting was for when you had your Mac, do you?
I had PJ's modified stock carbs on that bike and it was a perfect match. 
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Apr 11, 2018, 14:57:14
His modified carbs seem to be pretty legendary. PJ...if you are listening - what is the chance that I could send you my carbs for modification? Being able to run pods would make life a hell of lot easier when trying to reduce the footprint of my battery box.
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Apr 11, 2018, 15:16:28
Last night my valves started making some pretty loud clacking, but only when revving the throttle. It looks like I overfilled the oil, but not by much at all. I put in 2.1 qt (since I had the engine off and had the crank case opened up on both left and right). Could that cause the clacking?

I had set the valve heights to a tight .002 and a tight .003, and when I checked them last night after letting it cool down - they were just like I had originally set them. I haven't taken it out for a ride since dropping the engine back in and getting everything back on the bike - still waiting to print my seat out. The larger 3D printer has a cracked platform needed to heat the filament up just enough to stick to the surface.

Title: Re: 1974 CB360 - first bike/build
Post by: irk miller on Apr 11, 2018, 15:26:18
Sounds like you may be adjusting the valves on the wrong stroke or the wrong part of the stroke.
Title: Re: 1974 CB360 - first bike/build
Post by: Sonreir on Apr 11, 2018, 16:05:35
Also, it might just be normal operation. The top ends of the Honda twins are a cacophony of mechanical noises.
Title: Re: 1974 CB360 - first bike/build
Post by: MiniatureNinja on Apr 11, 2018, 20:47:15
like Sonreir said - they are usually pretty loud. But a clacking sound would concern me... while I could hear the "mechanical craziness" of my 360 it never made a tapping sound - check for vacuum leaks? sometimes those can sound like a valve tapping but it's just the exhaust
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Apr 11, 2018, 21:22:23
It is a lot more noticeable than the typical clicks I was hearing before I took the engine out of the frame for paint.

I am going to go through my valves again tonight - making sure that I am just coming off the compression stroke for each side. If I still can't get it to quiet down there is a local guy that I just found out about from a buddy at work that works on older Hondas. He told me to bring it by his home shop tomorrow morning before work.

Even if he tells me I am hearing things, I will ride easier.
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Apr 11, 2018, 23:37:42
You need to be TDC compression, probably set on overlap if really noisy?
May be exhaust leak if you tightened things in wrong sequence or didn't have all the bolts in place when re-fitting it
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Apr 12, 2018, 16:35:00
I took it out to his shop this morning - he listened to it for about 10 min. Told me that there was nothing there that concerned him. So I just need to solve my electrical problem, and get my seat & battery box made - then I should be back on the road.

But I am really glad I went out there - he has some beautiful bikes tucked away in his shop. His 1982 CX500 Turbo looked like it had never been ridden. He let me know that it was his favorite bike he owned, but hardly ever rides it. He also had an immaculate 1974 750. He traded some carb work to a guy in order to have the engine polished to a mirror. He couldn't have been nicer, spent an hour just walking around his shop talking about all the places he has ridden. He rode up to Alaska and back a couple of times on his Goldwing when his son was stationed there with the Coast Guard. That is a long ride from Mississippi.

Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Apr 13, 2018, 13:21:51
You need to be TDC compression, probably set on overlap if really noisy?
May be exhaust leak if you tightened things in wrong sequence or didn't have all the bolts in place when re-fitting it

I made sure to sit at TDC on the compression stroke - rotated the engine until I could feel pressure coming from the spark plug hole. So I know that isn't the issue.

I had no idea that there was a proper sequence for tightening the exhaust. I fitted everything loosely and made small adjustments all around to get the exhaust in the right spot. I haven't seen any exhaust fumes leaking out from the cylinder head. But there is a good bit of condensation at the muffler. I may need to drill a hole to give it somewhere to drain.

If there is a specific set of steps, I would appreciate the info.

Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Apr 15, 2018, 00:01:11

Like I mentioned, the guy I took it to said nothing concerned him. You may have to click on the image to get the video to play (don't have it hosted on YouTube). I may have just been off my bike for too long and forgot what it was supposed to sound like. But since it is the first time I have put it back together - I am being hypersensitive.

(https://farm1.staticflickr.com/790/39653963010_31982e82f9_c.jpg) (https://flic.kr/p/23q5VFq)
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Apr 15, 2018, 10:27:25
You have one slightly loose tappet, probably left exhaust?
Not serious, maybe 0.001"~2" over?
Cam chain sounds okay.
As for exhaust, as long as front is tightened even so gasket crushes properly and isn't too far off for rear mount to stress joint it should be OK. It isn't a two stroke and back pressure is low at idle so leaks only show up as 'pops' or 'cracks' and not visible 'smoke'
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Apr 16, 2018, 21:32:08
I am glad to know that I am hearing things.

I did end up moving forward with a new design on my electronics tray and battery box. I know that I want to eventually move away from my stock air boxes, and that I need a more snug battery box for my smaller battery. To give myself the ability to experiment with a few different options I decided to create a more modular style than my previous rigid model. The slots will let me attach the battery box in three different orientations by threading 1" webbing through the battery box and doing the same on the tray. The box should be ready by Wednesday, but the tray will have to wait till next week.


You can view a few other angles on my flickr album (https://www.flickr.com/photos/132253189@N05/albums/72157676144066773).

(https://farm1.staticflickr.com/797/41507287261_ac1c98452e_c.jpg) (https://flic.kr/p/26eRGpP)

(https://farm1.staticflickr.com/830/40794193264_778cebf14a_c.jpg) (https://flic.kr/p/259QUpJ)
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Apr 16, 2018, 21:49:01
I also needed a little more length on my headlight brackets, and also needed to make-up some width because I bought the wrong size headlight. The brackets are two separate pieces attached using an M6-1.0 socket cap bolt, threaded through a press-fitted hex-nut on the interior of each bracket. I am having these printed in carbon-fiber, and they should also be ready by Wednesday (so long as the prints don't fail). They are only going to take around six hours to print, but the lab is closed down tomorrow so they can pull out some asbestos tiles to make room for the plasma cutter.

I might end up using a different angle to give a little more straight-line look, because these will point at a steep angle.

(https://farm1.staticflickr.com/878/40794192924_ab5d847731_c.jpg) (https://flic.kr/p/259QUiS)

(https://farm1.staticflickr.com/799/40794193134_a10dcc9064_c.jpg) (https://flic.kr/p/259QUnu)

(https://farm1.staticflickr.com/843/40794192814_1231c3d0a0_c.jpg) (https://flic.kr/p/259QUgY)

Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Apr 22, 2018, 16:53:21
I didn't get the tray or battery box printed last week - they were closed down for almost the entire week. I did get the headlight brackets back though. They fit great, but they are ugly as sin. There are some changes I plan on making before having them printed again. The press fit nuts took a few turns on my vice.


(https://farm1.staticflickr.com/874/41630638281_e049b0f530_c.jpg) (https://flic.kr/p/26qKUnx)

(https://farm1.staticflickr.com/842/41590527522_e31c943bce_c.jpg) (https://flic.kr/p/26ndjQJ)

(https://farm1.staticflickr.com/793/41630638731_78085b3529_c.jpg) (https://flic.kr/p/26qKUvi)
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Apr 22, 2018, 16:56:20
I am still having issues with my LEDs flickering. All of my grounds checked out for continuity, and I am still not seeing any voltage spikes/drops with my battery. I cut all of my soldering points for my top clamp and am waiting on some new bullet connectors to try and go straight from the 20 gauge wiring to my harness without soldering.

Title: Re: 1974 CB360 - first bike/build
Post by: MiniatureNinja on Apr 22, 2018, 20:53:46
I am glad to know that I am hearing things.

I did end up moving forward with a new design on my electronics tray and battery box. I know that I want to eventually move away from my stock air boxes, and that I need a more snug battery box for my smaller battery. To give myself the ability to experiment with a few different options I decided to create a more modular style than my previous rigid model. The slots will let me attach the battery box in three different orientations by threading 1" webbing through the battery box and doing the same on the tray. The box should be ready by Wednesday, but the tray will have to wait till next week.


You can view a few other angles on my flickr album (https://www.flickr.com/photos/132253189@N05/albums/72157676144066773).

(https://farm1.staticflickr.com/797/41507287261_ac1c98452e_c.jpg) (https://flic.kr/p/26eRGpP)

(https://farm1.staticflickr.com/830/40794193264_778cebf14a_c.jpg) (https://flic.kr/p/259QUpJ)
So what you have is an electronics tray, and then the battery separately? That's genius. Great work in fusion too I love that program its gold.
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Apr 22, 2018, 21:19:53
I am still having issues with my LEDs flickering. All of my grounds checked out for continuity, and I am still not seeing any voltage spikes/drops with my battery. I cut all of my soldering points for my top clamp and am waiting on some new bullet connectors to try and go straight from the 20 gauge wiring to my harness without soldering.
LED's may be sensitive to charge voltage fluctuation if your using too small a battery? It won't show up with a normal meter unless you have a  PVA (peak voltage adapter, make one, Snap-on has a problem with the $28.00 one they sell) PVA's are actually 'fun' when your doing various voltage tests(12v side of ignition coil 'see's' around 320v spikes)
Fitting smoothing capacitors should cure any flickering. It's simple enough to get some 16v 1000 micro farad caps from old electronic components (Cathode ray TV's seem to be on every street corner when people have switched to flat screen LED TV's, 'dead 'surround sound, amps, clock radio's etc) Worst comes to worst you could always buy some, Radio Shack has a permanent sale on until they get rid of enough old stock to close various locations
I made alloy brackets for the 41mm forks, using XS650 headlight (maybe?)
http://www.dotheton.com/forum/index.php?topic=11736.200 (http://www.dotheton.com/forum/index.php?topic=11736.200)
reply 241~244
(http://i91.photobucket.com/albums/k315/1crazypj/Honda%20CB360/Kat-YamL.jpg)
(http://i91.photobucket.com/albums/k315/1crazypj/Honda%20CB360/Kat-YamR.jpg)
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Apr 23, 2018, 18:24:56
I figured that I change my mind so much that I might as well make my tray and battery box as flexible as possible. This way I can still run my stock air filters, and when/if I change to a different filter setup I can just rotate the box. I am hoping to pick the tray and box up by Wednesday afternoon. And I just dropped off my new headlight brackets - which should be ready at the same time.

And for anybody that is wondering - the carbon fiber used in the brackets is pretty strong. It has some flex to it, but I have to white-knuckle the thicker bits to get to give. Here is the new design (I finally got my math right on the width I needed - adding a slight curve at the attachment point to give me the space I need):

Inner View
(https://farm1.staticflickr.com/934/40764937855_c31bfc34e5_z.jpg) (https://flic.kr/p/257fXN8)

Outerview
(https://farm1.staticflickr.com/843/27787295088_75fcb59d54_z.jpg) (https://flic.kr/p/Jkt9JC)



Title: Re: 1974 CB360 - first bike/build
Post by: irk miller on Apr 23, 2018, 18:58:47
I love the design, except I don't like that you can't have washers.  If the nuts are captured, that means you're turning the screws on the piece and digging in. 
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Apr 23, 2018, 20:03:50
Personally I think it looks a lot better with some 'shape', does the arm need to be so long?
Looks like it cold be at least an inch shorter?
As for bolts and captive nuts, not a problem as it's pretty much a 'fit and forget' part.
If it was something that needed removal on a regular basis then it could be an issue but even then it wouldn't be a big deal to either incorporate washers or enlarge counter bore slightly so washers could be fitted (or have special smaller diameter washers made)
 
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Apr 23, 2018, 20:31:21
It is long, just under 140mm (roughly 5.5"). But the headlight bucket I have is 5.25" deep, so I am hoping the length won't be as much of an issue with the bucket to fill in some of that space. My previous brackets (off the shelf) were 4 1/2" and were putting pressure on my throttle cables. Or at least that is what I told myself when I pulled out my checkbook to pay for these to be printed.

If I didn't have such easy access to the printers, I would have probably done something a lot more universal (or kept what I had) and not used the press-fit nuts. Since I will have a new set of brackets in the next few days, I will do some stress testing to see how much torque it takes to get the nuts to move. The space the nuts sit in were undersized by .55mm.

Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Apr 23, 2018, 20:37:01
LED's may be sensitive to charge voltage fluctuation if your using too small a battery? It won't show up with a normal meter unless you have a  PVA (peak voltage adapter, make one, Snap-on has a problem with the $28.00 one they sell) PVA's are actually 'fun' when your doing various voltage tests(12v side of ignition coil 'see's' around 320v spikes)
Fitting smoothing capacitors should cure any flickering. It's simple enough to get some 16v 1000 micro farad caps from old electronic components (Cathode ray TV's seem to be on every street corner when people have switched to flat screen LED TV's, 'dead 'surround sound, amps, clock radio's etc) Worst comes to worst you could always buy some, Radio Shack has a permanent sale on until they get rid of enough old stock to close various locations

It is killing me that I can't see of your pictures. As far as the capacitors are concerned - do I just need to solder them as a bridge between my harness and the light? Or would my connections be more secure if I used a small bread board?
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Apr 24, 2018, 12:38:14
I would probably fit them near LED,easiest to just solder inline, make sure polarity is correct
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on May 03, 2018, 09:53:58
Got the capacitors in, but I also just found out that my wife decided to get me an m-unit & m-button for my birthday. Yeah, I was pretty surprised & excited. So I am going to hold off on the capacitors until I get everything wired up through the m-unit.

I am glad she didn't get me the one with bluetooth...I don't want to deal with that crap.
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on May 03, 2018, 10:05:08
The battery box turned out well - but I would make some changes to it so that the posts protrude past the top face of the box. Didn't think that one through. But the onyx filament used for the print has a finished look.

(https://farm1.staticflickr.com/912/41865332041_a2af77ab4f.jpg)

(https://farm1.staticflickr.com/831/26997055277_5c7f3e25f1.jpg)

(https://farm1.staticflickr.com/944/41148133514_1e627926d7.jpg)

(https://farm1.staticflickr.com/908/41865330431_a327d40ca2.jpg)
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on May 03, 2018, 10:14:56
The electronics tray warped when it was printed - so they didn't charge me for it. I took it home to see how I did with my measurements, and I found out that I have some more room to play with (width, depth, and length). The tech in the lab is going to try and setup the larger printer to use some the onyx filament to hopefully get a better print. I will probably bring the tray down to the bottom of the stock air box mount tab.

I am going to have to make some modifications to the rear inner fender - or just make a new one - in order to get the battery box all the way to the back of the tray. Does the wheel travel in far enough to need the curve in the fender, or can I just use a flat piece of steel?

(https://farm1.staticflickr.com/951/41148122314_29a209219b.jpg)

(https://farm1.staticflickr.com/904/40058115460_016aa63f8d.jpg)
Title: Re: 1974 CB360 - first bike/build
Post by: MiniatureNinja on May 03, 2018, 16:01:05
I don't think the wheel could come up so far that a flat peice would contact - even with my bike as low as it is, it could never hit something flat on the inside of the frame
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on May 03, 2018, 16:03:37
I don't think the wheel could come up so far that a flat peice would contact - even with my bike as low as it is, it could never hit something flat on the inside of the frame

Awesome! I have a sheet sitting in my garage that will be perfect.
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on May 03, 2018, 17:27:16
You can't use a flat piece across the 'diagonals. Take shocks off and lift wheel to see where it's going to end up (or use a bar drilled at 9-1/2" centers) You need a minimum of 3/8" clearance at 'full bump' to allow for various things flexing (they will)
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on May 03, 2018, 23:41:32
Okay - that makes sense. I also didn't think about how fender sits between the swing arm until I got home tonight to take a look.
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on May 04, 2018, 00:13:49
I cut a small section out of front lower plastic piece as I mounted battery to the tool box mounting brackets. Wasn't too concerned as steel battery box would need a substantial 'smack' to damage battery but I have had things 'go round with the wheel' in the past and get stuck on swing arm
Title: Re: 1974 CB360 - first bike/build
Post by: MiniatureNinja on May 04, 2018, 00:18:48
Okay - that makes sense. I also didn't think about how fender sits between the swing arm until I got home tonight to take a look.

a small curve in the sheet shouldn't be hard to make, and will make certain no contact occurs. I don't see how it could contact, like I said - my bike can't contact a sheet there. but I realize now thinking about it that I have a longer swingarm, so that may be why
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on May 05, 2018, 14:49:53
Brendon used a flat sheet with curve on his 360, wheel gets close but doesn't touch.
I think we drilled a couple of 5~6mm holes in original side mounts, the curve plus only 2 bolts stops things moving around or vibrating too much
It gave him somewhere to put various stickers  ;D
Reply 714 just after we finished putting it together
http://www.dotheton.com/forum/index.php?topic=11736.700 (http://www.dotheton.com/forum/index.php?topic=11736.700)
 
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on May 17, 2018, 17:08:05
Slow going as of late. My m-unit came in (v2, no bluetooth), along with an m-button. But I haven't had time to do much with it. I went through two more versions of my headlight brackets, they were too long...just like PJ mentioned. My headlight bucket just didn't fill up the space like I had hoped. I shortened them, and got the headlight tucked back as far as I could get it without putting pressure on any of my cables. The first image makes it look like there is about a mile's worth of space that I could have gotten rid of, but you can tell from the second photo that it is pretty snug.


(https://farm1.staticflickr.com/827/28304230428_e39ca96a13_z.jpg)

(https://farm1.staticflickr.com/826/27304946467_b83e091735_z.jpg)
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jul 12, 2018, 15:05:47
Been a while - despite what most folks believe, summers are way more busy in higher-ed than other semesters. About the only thing I have been able to work on is a first run at my air box and a new seat.

I learned a lot designing the filter - a lot of things weren't apparent until I had something in hand. First thing is that I my next attempt will be built around an off the shelf filter to keep me from having to beat my head against the wall while trying to keep the foam out of the carbs. I also need to figure out a way to run supports from the front plate to the front mount of the battery box to prevent carb sag.

I haven't run the bike with the filter on there - this was really a true test fit. It looks good though.


(https://farm2.staticflickr.com/1786/42650044644_ed01d4e7dc_z.jpg) (https://flic.kr/p/27YQCnj)


(https://farm2.staticflickr.com/1766/42650043624_edfc821d46_z.jpg) (https://flic.kr/p/27YQC4J)


(https://farm1.staticflickr.com/924/42650030894_a16af58d66_z.jpg) (https://flic.kr/p/27YQyhf)


(https://farm1.staticflickr.com/846/42650039544_0aecd8d391_z.jpg) (https://flic.kr/p/27YQARo)
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jul 12, 2018, 15:18:40
I printed the rear cowl using PLA instead of anything more substantial - since it was just going to serve as a mold. I want to try and keep from cutting too much off the rear of the frame, while keeping the stock rear fender mount in place. The curve in the cowl sits just in front of the rear fender mounts.

I am going to mount the seat on rail that goes across the bike just before the fender rises up, but I need to have another mounting point up front. I am going to use some rubber stops to give me the height and angle I want.

I doubled the foam thickness for my mold, knowing that I would trim any excess off once I started fitting it on the bike. I used some tubing to make the rim of the seat, but it gave me headaches trying to keep everything smooth.

This first attempt isn't going on the bike. After sanding I realized that the air around the tubing caused too many thin/weak spots - and the side rails turned in at the bottom.I would end up having to bondo the crap out of it to make it somewhat close to paintable. I am going to glass the mold again without the tubing tonight and see if I can't get some better lines, because this one looks like garbage.


(https://farm2.staticflickr.com/1789/43366846431_bb93b90dc3_z.jpg) (https://flic.kr/p/295bqyP)


(https://farm1.staticflickr.com/915/42650038154_d2d1c1b695_z.jpg) (https://flic.kr/p/27YQArq)


(https://farm2.staticflickr.com/1802/43318568912_402d802a31_z.jpg) (https://flic.kr/p/28ZUZkN)


(https://farm1.staticflickr.com/833/42650036634_7bbe7e61d5_z.jpg) (https://flic.kr/p/27YQzZd)


(https://farm1.staticflickr.com/924/28497979627_e4da9109ed_z.jpg) (https://flic.kr/p/KqgAuk)


(https://farm2.staticflickr.com/1781/42650031934_6548754986_z.jpg) (https://flic.kr/p/27YQyAb)


(https://farm1.staticflickr.com/920/42650029254_c521c38cde_z.jpg) (https://flic.kr/p/27YQxMY)

[/size][/font]
Title: Re: 1974 CB360 - first bike/build
Post by: advCo on Jul 12, 2018, 16:22:03
I made a little stainless bracket that bolts onto the engine mount bracket. Kinda stole the design from Trek and 3D printed a little piece that slips on the end and fits snugly into the castings on the carb. Works great to prevent sag. A few more pics on the second to last page on the build thread.

(http://www.dotheton.com/forum/index.php?action=dlattach;topic=63294.0;attach=171081;image)
Title: Re: 1974 CB360 - first bike/build
Post by: advCo on Jul 12, 2018, 16:33:56
By the way, that airbox is trick. Nice work.
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jul 12, 2018, 17:30:22
I made a little stainless bracket that bolts onto the engine mount bracket. Kinda stole the design from Trek and 3D printed a little piece that slips on the end and fits snugly into the castings on the carb. Works great to prevent sag. A few more pics on the second to last page on the build thread.

(http://www.dotheton.com/forum/index.php?action=dlattach;topic=63294.0;attach=171081;image)

Thanks for the compliment, but I am sure I will be chasing my tail with jetting to get it to run close to normal.

Have you had any issues with that bracket you made? Not too much vibration?
Title: Re: 1974 CB360 - first bike/build
Post by: advCo on Jul 12, 2018, 17:53:54
Thanks for the compliment, but I am sure I will be chasing my tail with jetting to get it to run close to normal.

Have you had any issues with that bracket you made? Not too much vibration?

Nope. It hasn't moved a bit. I put a lock washer behind the engine mount bolt and a bit of loctite on it. The carbs feel like they should with a stock airbox on there.
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jul 19, 2018, 14:17:37
My second seat turned out much better - I removed the lip around the edge of the mold, which made things easier. It still needs a good bit of work - but I pleased with how it turned out strength-wise. I can put my full standing weight on it and it doesn't even blink.


(https://farm1.staticflickr.com/860/29640527838_19a4c32264_z.jpg)
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jul 19, 2018, 14:23:48
I was also able to go though a few test prints for my handle bar controls. What I have now is the design I will end up having milled out of aluminum at some point in the future. The barrel nuts are in there because I didn't want to risk the bolts pulling out - it is functional, but not the prettiest. When it is milled, they will be removed and I will just use a threaded channel going from front to back.

I am using a four-button setup with my mUnit. There is an m-button stuffed into the handlebar, and the switches I found are from Amazon: https://www.amazon.com/gp/product/B01FKXRYT6/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 (https://www.amazon.com/gp/product/B01FKXRYT6/ref=oh_aui_search_detailpage?ie=UTF8&psc=1)

And ignore all the fiberglass/resin dust on it - I haven't had the chance to wipe anything down.


(https://farm1.staticflickr.com/924/42794747574_d84c94de9e_z.jpg)


(https://farm1.staticflickr.com/836/42794747324_d3459ced03_z.jpg)


(https://farm2.staticflickr.com/1783/42794749354_87a0339b5a_z.jpg)


(https://farm2.staticflickr.com/1762/42794748764_bd7b2cb641_z.jpg)


(https://farm2.staticflickr.com/1770/42794747974_55c4e84e58_z.jpg)
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jul 19, 2018, 14:38:51
My original plan was to use the hump design from my seat to build a custom piece for my running/brake light and turn signals. But I am going to have to do some more measuring to make sure I won't have any wheel clearance issues. I found the tail light after seeing Derek Kimes XJ750 on BikeExif. http://www.bikeexif.com/turbocharged-yamaha-xj750-maxim-restomod (http://www.bikeexif.com/turbocharged-yamaha-xj750-maxim-restomod)

Morimoto Mod Pod, dual intensity: https://www.theretrofitsource.com/morimoto-mod-pod-led-lights.html (https://www.theretrofitsource.com/morimoto-mod-pod-led-lights.html)

I found these lights on Amazon for my turn signals: https://www.amazon.com/gp/product/B01ADHUWWA/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 (https://www.amazon.com/gp/product/B01ADHUWWA/ref=oh_aui_search_detailpage?ie=UTF8&psc=1)

(https://farm1.staticflickr.com/930/42794746984_3af6facbbf_z.jpg)

(https://farm2.staticflickr.com/1768/29640527908_acb2afcb1e_z.jpg)
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jul 26, 2018, 11:22:23
Lots of sanding, a few more layers of fiberglass, and lots more sanding...hours. I went through about 10 paint brushes, lots of plastic cups (some of which melted on contact with the resin...sending me back to find some more durable ones).

I burned through to the fiber a few times when sanding. I wasn't 100% sure if just another layer of resin would hold up, so just to be safe I added another layer of fiber/resin. There are also some areas where the cloth version developed air pockets. But I cut/sanded those back down and built up the areas with chop. The spots still show up in the photo, but there isn't any air in there.

I think I am ready to put a thin coat of bondo on it to even everything out.


(https://farm1.staticflickr.com/913/41844623840_1f9369972b_c.jpg)


(https://farm1.staticflickr.com/860/43651892081_6cbb458717_c.jpg)
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jul 26, 2018, 11:26:05
I am going to raise the front lip of the pan to keep the bottom line of the pan lined up with the bottom line of the tank.

I did end up trimming off about two inches from the rear of the frame, but arch across the frame rails for the rear fender is still in place. I cut the frame and left the ends flat, but I may need to come back and trim it up at an angle so my tail/turn piece will fit without too many problems.
Title: Re: 1974 CB360 - first bike/build
Post by: advCo on Jul 26, 2018, 11:28:26
Tail looks good. Another layer of fiber won't hurt anything, that's the right way to go IMO.
Title: Re: 1974 CB360 - first bike/build
Post by: Sderbyshire on Jul 26, 2018, 12:40:11
I am going to raise the front lip of the pan to keep the bottom line of the pan lined up with the bottom line of the tank.


Thatíll look great, make sure the tank rear is in the rubber holder not on it when you measure !

Steve
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jul 26, 2018, 15:13:39
I forgot to mention that I am going to tape the seat back up and make a fiberglass pan for the cushion/upholstery to sit on based on the seat's current shape. I am having trouble deciding if I want to glass in some bolts to the pan that will pass through the seat body (?) that sits on the bike, and use some type of nut to tighten everything down...or if I want to put some rivet nuts in the pan and and tighten everything down using some cap head bolts from underneath.

Any suggestions?
Title: Re: 1974 CB360 - first bike/build
Post by: advCo on Jul 26, 2018, 15:45:49
I forgot to mention that I am going to tape the seat back up and make a fiberglass pan for the cushion/upholstery to sit on based on the seat's current shape. I am having trouble deciding if I want to glass in some bolts to the pan that will pass through the seat body (?) that sits on the bike, and use some type of nut to tighten everything down...or if I want to put some rivet nuts in the pan and and tighten everything down using some cap head bolts from underneath.

Any suggestions?

For the tail on Luna...I used some of those rubber plugs with threaded inserts embedded into them, drilled holes and epoxied them right into the tail. I had to replace one because it decided to spin on me, but the rest of them worked well for 4 years. I notched the rubber so it would have some teeth for the epoxy to grip. Figured it might give a bit of dampening. I ran 3 allen head bolts with flat washers and split locks and never had an issue.

(https://www.insertsdirect.com/acatalog/Rubber_Nut-Product.jpg)

They make them with studs, too.
Title: Re: 1974 CB360 - first bike/build
Post by: Oz350Four on Aug 03, 2018, 02:19:03
Hey advCo what size and where did you get those stopper things...???
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Aug 31, 2018, 16:33:12
It was so painfully obvious that my taillight section was going to be destroyed on my first bump - so I spent a little time working out how to add my taillight to the rear hump without changing the profile too much. I 3D printed the black piece you can see through the glass to make sure I got a consistent slope.
Title: Re: 1974 CB360 - first bike/build
Post by: Maritime on Aug 31, 2018, 17:53:30
Nice job
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Sep 09, 2018, 11:53:49
Nice job

Appreciate it! I have been working on some projects around the house for the past couple of weeks and havenít been able to spend much time on it.

Thankfully I have my first seat to use for experimenting with mounting points. I tried using some t-nuts, but I didnít feel like the would hold without cracking in the long run.
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Sep 09, 2018, 11:57:06
I still canít find the mounts that advCo mentioned.


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Title: Re: 1974 CB360 - first bike/build
Post by: irk miller on Sep 09, 2018, 15:21:27
I still canít find the mounts that advCo mentioned.


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They are called well nuts.  You can do a search for rubber well nuts.  The proper way to run them is the flange acts like a washer between the parts being mounted together, the screw threads in and pulls the bolt from the other side and expands the rubber to hold the part. 

Here's a kit for sale on Amazon: here (https://www.amazon.com/dp/B016LCAJWO/ref=sspa_dk_detail_1?psc=1&pd_rd_i=B016LCAJWO&pf_rd_m=ATVPDKIKX0DER&pf_rd_p=a54d13fc-b8a1-4ce8-b285-d77489a09cf6&pf_rd_r=9ZBH6HBSWQNEC0Q5H9BT&pd_rd_wg=nm0xn&pf_rd_s=desktop-dp-sims&pf_rd_t=40701&pd_rd_w=xYWeP&pf_rd_i=desktop-dp-sims&pd_rd_r=9b9d708f-b45b-11e8-ad5d-f9d1f1abea37)
Title: Re: 1974 CB360 - first bike/build
Post by: advCo on Sep 10, 2018, 13:47:04
I got them at Home Depot in the hardware aisle.
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jan 04, 2019, 11:46:59
Been crazy - having a teenage daughter has kept me busy. I finally got a seat upholstered. The only shop I found in town that could do it for me didn't any foam that felt firm enough, so I ordered foam from a few different places, but never found anything that I really liked. I ended up pulling off the seat cover from my stock seat and taking the foam from it to the upholsterer.

I used the seat pan on the bike as a mold and glassed a separate sheet for the upholsterer to use as a guide, and to give the seat cushion some strength for when I need to take it off and on (using a few strips of industrial velcro). I will get a few shots of how I ended up mounting the seat pan, using some stock mounting points.



(https://farm8.staticflickr.com/7814/44782894240_8024f9a140_c.jpg)

(https://farm5.staticflickr.com/4863/45686564445_9193f2c20e_c.jpg)

(https://farm8.staticflickr.com/7857/32726739608_1291f2d0f3_c.jpg)
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jan 04, 2019, 11:50:52
Oh, and I freaking won Revival Cycle's Handbuilt Show Lincoln Electric giveaway!!! I thought I was getting scammed, even after I talked with a guy at their shop. Two welders, a plasma cutter, and (not pictured) all the other gear I need to get started. I don't know the first thing about welding...but thankfully I know the welding instructor here at work, and will hopefully be able to take a few night classes with him.


(https://farm8.staticflickr.com/7810/44782893880_926b43f55f_c.jpg)
Title: Re: 1974 CB360 - first bike/build
Post by: cb360j on Jan 04, 2019, 11:53:15
Dude!!!! I was wondering who won that, good for you man!
Title: Re: 1974 CB360 - first bike/build
Post by: Jimbonaut on Jan 04, 2019, 11:53:49
Damn, nice score! Great looking ride too man, enjoying the build


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Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jan 04, 2019, 12:10:02
Damn, nice score! Great looking ride too man, enjoying the build

Thanks man. I still have a ways to go, getting all the details sorted out. But having it back in a rideable state feels really good.
Title: Re: 1974 CB360 - first bike/build
Post by: MiniatureNinja on Jan 04, 2019, 12:13:42
congrats on winning the revival contest!!!!!!!!!!!
I was wondering who won that, they never announced anything. I am envious of you!
Title: Re: 1974 CB360 - first bike/build
Post by: JustinLonghorn on Jan 04, 2019, 12:24:22
Holy shit! That Lincoln setup is all you will ever need. Congrats again on that, man!

Keep up the good work, the scoot is looking fantastic.
Title: Re: 1974 CB360 - first bike/build
Post by: advCo on Jan 04, 2019, 13:10:43
That's badass. I haven't been to Handbuilt in a couple years. Are you out of Texas? I'm in Houston.
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jan 04, 2019, 18:44:52
Not in Texas - but only about a 10 hour drive from Austin, been out there a couple of times for SXSW (for work), but never by their shop.
Title: Re: 1974 CB360 - first bike/build
Post by: DesmoDog on Jan 05, 2019, 00:54:49
Got a new battery from Sparck Moto - the thought was to get one small enough to mount just about anywhere in any orientation. I still wasn't 100% sure on the direction I wanted to head with the bike (still not).

(https://farm5.staticflickr.com/4575/37714057845_648549a926_z.jpg) (https://flic.kr/p/ZsEpsD)

I've only scanned over all the posts here so maybe I missed it, but have you upgraded the voltage regulator? Modern batteries need modern (MOSFET) voltage regulators.

I know EarthX uses some sort of battery protection circuit to protect from over charging, but I also know what an EarthX smells like when it self destructs due to over voltage being fed into it. Once the battery begins to fail, there is nothing you can do to stop it, you just have to stand there, watch the light show, and hope nothing actually starts burning. Stand upwind.

To be fair I have been told (by EarthX) that they have upgraded the over voltage protection since I had my little issue, so I kinda doubt your bike puts out enough voltage to hurt it even unregulated, but better safe than sorry. You do NOT want that thing losing all it's smoke, and trust me, they hold a LOT of smoke. And it smells horrible. The "holy shit I'm pretty sure I shouldn't be inhaling this" sort of horrible smell. Im also guessing the LEDs would appreciate a more modern approach to voltage regulation but I'm no LED expert.

My '91 Ducati 851 now runs a modern voltage regulator and a voltage meter along with it's (replacement) EarthX battery.

(http://teamyikes.com/851/earthx02.jpg)

So to recap:

If you want to run a modern lithium battery, you should also run a modern regulator. And a voltage meter.

Also just to be clear, I don't blame EarthX for this, Post-meltdown testing showed the voltage regulator was shot. I also lost a circuit in the ECU, plus the headlight and a fuel pump relay failed soon after. Maybe a coincidence, maybe not.
Title: Re: 1974 CB360 - first bike/build
Post by: 1fasgsxr on Jan 05, 2019, 11:02:56
I bought this for a 98 Gsxr 750
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Jan 05, 2019, 16:04:02
Suzuki R/R are always a suspect component. Even the 2008~2010 are crap and can cause fires with 100% stock set up. (I was teaching 'FAST' at MMI from 2006) plus I worked in Suzuki dealers in 1980's. Some are OK  ('Intruder' where they had to be mounted close to left silencer) but they have always used the cheapest components available. It's kinda like the LUCAS of the Japanese bike industry. Lucas could actually make really good parts, just not at the prices demanded by manufacturers.
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jan 17, 2019, 22:39:24
I upgraded the reg/rec (got one from Sparck) pretty soon after I started working on it. I also added one of Rick's Electrics stators about a year ago. I ended using their reg/rec combo once I made the swap since it came with the stator.

But as of tonight - my EarthX is dead. After talking with EarthX it sounds like it has a dead cell (won't charge above 11.5ish). Not sure what happened to it - EarthX said that the battery was compatible with Rick's charging system.

Now I am trying to figure out what to do for a new battery without shelling out a lot of cash, since I have get my truck re-painted pretty soon.
Title: Re: 1974 CB360 - first bike/build
Post by: cb360j on Jan 18, 2019, 08:06:30
They're very cheap, but, powersonic actually has decent batteries. The company I work for purchase from them for something like $3 per battery lol. I have seen some on amazon for $39 or something that would support our bikes. Weird that your EarthX isn't holding up though.
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Jan 20, 2019, 02:02:55
Probably the rejects from Boeing?  ;D
Title: Re: 1974 CB360 - first bike/build
Post by: Odontologist on Jan 20, 2019, 03:17:42
An old saying... When I die, I hope my wife doesn't  sell the bikes for what I told her I spent on them.
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jan 22, 2019, 14:34:55
An old saying... When I die, I hope my wife doesn't  sell the bikes for what I told her I spent on them.

No kidding - she asked me the other night how much I have spent on the bike. I told her to guess...which she was way off, and then I lied through my teeth.
Title: Re: 1974 CB360 - first bike/build
Post by: huck_finn on Jan 24, 2019, 10:52:34
I ended up ordering a 12v 7 Ah from Motobatt (https://www.amazon.com/gp/product/B007V5H2BM/ref=ppx_yo_dt_b_asin_title_o00__o00_s00?ie=UTF8&psc=1). It is a sealed AGM - the dimensions are obviously pretty different from my EarthX, so I am going to have figure out if I can make my current electronics/battery box work with some modifications.


If not, I will probably end up making this one out of steel - making modifications to my current design. The nice thing about Fusion 360 is that I can take my design and essentially flatten it out, and then have the pattern cut using the laser bed at work. And then I get to learn how to stick weld.
Title: Re: 1974 CB360 - first bike/build
Post by: Supergyro on Jan 24, 2019, 23:14:30
Maybe I missed it earlier in the thread, but are you planning on using your electric start or just kicking the bike over? Curious as to your math for 7ah for the battery.
Title: Re: 1974 CB360 - first bike/build
Post by: trek97 on Jan 25, 2019, 20:30:28
Its been so long, I think I have a 7ah AGM in my 360 and NEVER kick it, only use the electric start.

That battery has lasted 6+ years, still going strong and it was an amazon cheapy.

Oops mine is a 8ah.  and yeah bought in 2012.

(http://www.dotheton.com/gallery/11494-250119184447-48652393.png)

(http://www.dotheton.com/gallery/11494-250119184447-4863127.png)
Title: Re: 1974 CB360 - first bike/build
Post by: crazypj on Jan 25, 2019, 20:40:38
7Ahr will crank bike over but it doesn't have much if any reserves if it doesn't start after a few seconds. You need around 40~45CCA to keep motor turning and about 60CCA to get it 'spinning' initially. The voltage drop can prevent coils firing if it drops below ~10V As long as bike is set up properly and you don't crank for 30sec or more it shouldn't be a problem