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Blood Sweat Tears and Grease => Projects => Bob and Chop => Topic started by: irk miller on Oct 09, 2017, 00:18:20

Title: CB750 No Plunger Hellride
Post by: irk miller on Oct 09, 2017, 00:18:20
Thanks to the gracious delivery of this 70's era plunger frame from New Mexico to Alabama by Canyoncarver, I'm jumping into this chopper build with two feet. I've reached out to several forums, sorted through various catalogs and ads from the 70s, but have yet to identify the manufacturer with complete confidence.  I think it's definitely a production style frame, considering the neck.  It has two pressed in cups for a common neck tube.  The CB750 triple tree that came with the frame has a modified stem to account for the longer neck. 

(https://uploads.tapatalk-cdn.com/20171009/d84898423e40c89029a3a00698dd43fe.jpg)

We're in the sketching  phase, so things can change wildly.  Ultimately, I want to avoid common cues like peanut tanks....


It took some machine work on the steering neck cups and the RM stem to make this RM front end work...

(https://uploads.tapatalk-cdn.com/20171009/4ab747e7d5fd850cd7123595a8ad1182.jpg)

Here is sits with a 1991 RM250 front end and RM wheels front and rear.  I like the dimension of the dirt bike wheels, plus they're aluminum.   If I decide to go drum on the rear wheel, I may go 70s era XL350.

(https://uploads.tapatalk-cdn.com/20171009/9a8433f4e6ebe06b919e87ab1c3082f6.jpg)





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Title: Re: 70s Era CB750 Plunger Hellride
Post by: Hurco550 on Oct 09, 2017, 09:57:34
 I'm in

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Title: Re: 70s Era CB750 Plunger Hellride
Post by: Ryan Stecken on Oct 09, 2017, 10:37:52
Hell yeah man.Count me in.  8)  8)  8)
Title: Re: 70s Era CB750 Plunger Hellride
Post by: SONIC. on Oct 09, 2017, 16:37:42
Work slower. You make everyone else look bad.
Jackass.

Looks cool though  ;D
Title: Re: 70s Era CB750 Plunger Hellride
Post by: trek97 on Oct 09, 2017, 17:27:58
Those forks are AWESOME on that frame.
Title: Re: 70s Era CB750 Plunger Hellride
Post by: irk miller on Oct 10, 2017, 00:33:08
Grades and comments for midterms are due tomorrow, so what do I do?  Make a mount for a headlight...

(https://uploads.tapatalk-cdn.com/20171010/302063684e1307c8666b4196eb954b37.jpg)

(https://uploads.tapatalk-cdn.com/20171010/3ae0610d264c98ef3628196d39cc0c1e.jpg)

(https://uploads.tapatalk-cdn.com/20171010/54597f1455d72c1df2775a2419208875.jpg)


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Title: Re: 70s Era CB750 Plunger Hellride
Post by: trek97 on Oct 10, 2017, 00:37:00
That headlight on there is the shizzle.
Title: Re: 70s Era CB750 Plunger Hellride
Post by: 63SSRagtop on Oct 10, 2017, 01:40:19
Dig the frame, I've never seen one quite like this either.. can't tell if it's a weld on rear half or whole frame.. You are probably aware that the front end may be really spongy for the weight of the bike as the build goes on.. they are designed for much more travel than a street bike front end.. I've read that the fluid movevement can be restricted with a machined piece and/or stiffer springs.. worked on a cafe Suzuki that had 250 forks, they looked cool but damn it moved around way too much.. cool project though! Will keep tabs!

That frame looks to me like a Jammer frame, canít find any reference to one with a plunger rear, but someone at some point could have grafted in a Santee rear section..
Title: Re: 70s Era CB750 Plunger Hellride
Post by: irk miller on Oct 10, 2017, 07:47:54
Dig the frame, I've never seen one quite like this either.. can't tell if it's a weld on rear half or whole frame.. You are probably aware by that front end may be really spongy for the weight of the bike as the build goes on.. they are designed for much more travel than a street bike front end.. I've read that the fluid movevement can be restricted with a machined Peice and/or stiffer springs.. worked on a cafe Suzuki that had 250 forks, they looked cool but damn it moved around way too much.. cool project though! Will keep tabs!

That frame looks to me like a Jammer frame, canít find any reference to one with a plunger rear, but someone at some point could have grafted in a Santee rear section..

Yeah, I'm definitely considering the possibility that these forks won't work. I have tried them on a heavier dual sport contraption I built, so I think there's room to make them work here.  This is one iteration, with potentially several others. They can be valved and fluid levels adjusted to effect the dampening on these to account for weight. The rake is a big factor, as well.

I've narrowed my opinion of the frame manufacturer to either Jammer or an early Santee. Though, all the Santee plunger frames seem to have a goose neck. You may be right on about the plunger being grafted on a Jammer. The tubes which mount the springs certainly suggest that possibility...

(https://uploads.tapatalk-cdn.com/20171010/bb8b6279331300dd0c986248e3a28538.jpg)




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Title: Re: 70s Era CB750 Plunger Hellride
Post by: JustinLonghorn on Oct 10, 2017, 09:08:42
Choppers are dumb. And I love them.
Title: Re: 70s Era CB750 Plunger Hellride
Post by: Maritime on Oct 10, 2017, 11:21:25
Ha, I usually hate rectangle lights but it suits this bike well. Looking forward to more of course.
Title: Re: 70s Era CB750 Plunger Hellride
Post by: canyoncarver on Oct 10, 2017, 22:07:01
I barely pull in my driveway from the trip and you've already got a front end on it.  !    Sweet.
Title: Re: 70s Era CB750 Plunger Hellride
Post by: irk miller on Oct 11, 2017, 07:56:27
Had a little convo with Race Tech.  I could go as high as .52kg/mm on springs in these forks.  Stock is .36kg/mm.  We'll see how it acts with weight and go from there.  Regardless, I feel pretty good that we'll find a match with rake and trail considerations.
Title: Re: 70s Era CB750 Plunger Hellride
Post by: jag767 on Oct 12, 2017, 05:21:37
That front end looks like it has a ton of travel, do you have to limit it with a spacer or something or does it not matter? Btw it also looks fantastic on that frame.
Title: Re: 70s Era CB750 Plunger Hellride
Post by: irk miller on Oct 12, 2017, 07:49:03
That front end looks like it has a ton of travel, do you have to limit it with a spacer or something or does it not matter? Btw it also looks fantastic on that frame.
  I imagine there will be enough travel to hit the frame to floor if I were to jump it, but running on the street will just waste most of what it has available. As long as Race Tech has the right springs, these forks should work well.  I have a VZ800 front end to swap in, if this setup doesn't work. 
Title: Re: 70s Era CB750 Plunger Hellride
Post by: surffly on Oct 12, 2017, 09:09:25
Choppers are the best worst bikes ever!
Title: Re: 70s Era CB750 Plunger Hellride
Post by: irk miller on Oct 12, 2017, 09:43:35
Choppers are the best worst bikes ever!
Hell yeah they are!!!
Title: Re: 70s Era CB750 Plunger Hellride
Post by: irk miller on Oct 12, 2017, 09:48:37
I didn't take any glorious actions shots, but man you should've seen me getting all the Bondo off this frame.  Fuck that 70s smoothed out look.  I learned an old body shop trick with removing paint and bondo, which is to get a fan tip for a torch and go apeshit with a scraper and stiff wire brush.  It weakens the Bondo so you can scrape it off, or brush it off.  Thick areas require a few passes.  Some of it drops in flames.  Then clean up the mess on the floor with a broom.
Title: Re: 70s Era CB750 Plunger Hellride
Post by: advCo on Oct 12, 2017, 11:06:21
I didn't take any glorious actions shots, but man you should've seen me getting all the Bondo off this frame.  Fuck that 70s smoothed out look.  I learned an old body shop trick with removing paint and bondo, which is to get a fan tip for a torch and go apeshit with a scraper and stiff wire brush.  It weakens the Bondo so you can scrape it off, or brush it off.  Thick areas require a few passes.  Some of it drops in flames.  Then clean up the mess on the floor with a broom.

Sweet, I got a whole Ghia worth of Bondo to strip off. This will be useful.
Title: Re: 70s Era CB750 Plunger Hellride
Post by: Redbird on Oct 12, 2017, 12:36:46
Subscribed.
I see the bones of the Deviant Hellride in the background. Is she supplying the lump for this girl?
Title: Re: 70s Era CB750 Plunger Hellride
Post by: irk miller on Oct 12, 2017, 12:50:15
Subscribed.
I see the bones of the Deviant Hellride in the background. Is she supplying the lump for this girl?
That she is.  I thought about running those mags too.  We'll see how things go.  E and I are convinced that bike is cursed.  Hopefully the motor can be exercised. 
Title: Re: 70s Era CB750 Plunger Hellride
Post by: 3DogNate on Oct 13, 2017, 14:34:22
Watching.... plunger frames are cool
Title: Re: 70s Era CB750 Plunger Hellride
Post by: WhyNot on Oct 13, 2017, 14:47:44
I'm watching all the other builds, might as well jump in for the ride on this one.........

Jack

Title: Re: 70s Era CB750 Plunger Hellride
Post by: irk miller on Oct 13, 2017, 15:41:03
Thanks fellas. 

Got tires mounted.  I may go 18" or 17" on the rear instead.  This is 19" with a big ol flat track tire mounted.  21" up front.  I'll be looking at this setup for a while.

(http://www.dotheton.com/gallery/77150-131017133915.jpeg)
Title: Re: 70s Era CB750 Plunger Hellride
Post by: Maritime on Oct 13, 2017, 15:50:18
The big ole flat track tire makes the rear look bigger than the front which is weird or not right looking. Now maybe with a fender on the back it might look better?
Title: Re: 70s Era CB750 Plunger Hellride
Post by: irk miller on Oct 13, 2017, 15:59:09
The big ole flat track tire makes the rear look bigger than the front which is weird or not right looking. Now maybe with a fender on the back it might look better?
It's 1.5" taller in the rear, which is a look not uncommon for digger style choppers.
Title: Re: 70s Era CB750 Plunger Hellride
Post by: canyoncarver on Oct 13, 2017, 16:42:39
The 21" looks great up front.  That rake is perfect.  I'd try the 17" rear.
Title: Re: 70s Era CB750 Plunger Hellride
Post by: SONIC. on Oct 13, 2017, 16:50:38
I like the big rear tire.
Reminds me of a dragster  8)
Title: Re: 70s Era CB750 Plunger Hellride
Post by: clem on Oct 13, 2017, 18:40:27
Bam! Throw some top fuel flare on that thing.

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Title: Re: 70s Era CB750 Plunger Hellride
Post by: stroker crazy on Oct 13, 2017, 19:00:07
I like the big rear tire.

Me too!

Once the motor, tank, seat, etc. are in place it should look just right.

Crazy
Title: Re: 70s Era CB750 Plunger Hellride
Post by: canyoncarver on Oct 13, 2017, 19:51:43
Yes!
Title: Re: 70s Era CB750 Plunger Hellride
Post by: WhyNot on Oct 14, 2017, 07:00:24
Yep, like the stance.
Title: Re: 70s Era CB750 Plunger Hellride
Post by: jag767 on Oct 14, 2017, 07:20:19
Definitely drop to an 18 rear, front looks great!
Title: Re: 70s Era CB750 Plunger Hellride
Post by: irk miller on Oct 14, 2017, 12:45:58
Lump installed.  Goddamn, it's a heavy lump.

(http://www.dotheton.com/gallery/77150-141017104414.jpeg)
Title: Re: 70s Era CB750 Plunger Hellride
Post by: Hurco550 on Oct 14, 2017, 13:36:42
I can dig it

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Title: Re: 70s Era CB750 Plunger Hellride
Post by: SONIC. on Oct 14, 2017, 18:01:35
I do not like choppers.
For some reason I like this.
You have my permission to proceed.
Title: Re: 70s Era CB750 Plunger Hellride
Post by: irk miller on Oct 14, 2017, 18:59:47
I do not like choppers.
For some reason I like this.
You have my permission to proceed.

Ha!  Thanks.  Brad and Ard are telling me to scrap the plunger and make it a hardtail.  I have that inclination but I kinda want to stick with the plunger, if only because there aren't many out there. 
Title: Re: 70s Era CB750 Plunger Hellride
Post by: trek97 on Oct 14, 2017, 19:34:43
Oh no, you just gotta keep it as is. 
Title: Re: 70s Era CB750 Plunger Hellride
Post by: Maritime on Oct 14, 2017, 19:38:19
With the lump in rear tire looks better anf I agree keep plunger frame. Anyone can have a hardtail.  Plungers are more rare and different.  And we all know you're different
Title: Re: 70s Era CB750 Plunger Hellride
Post by: Hurco550 on Oct 14, 2017, 20:04:45
 Yep, my vote (Not that it matters) is to keep the plunger. Plus, if you hate it, it will be easy enough to hard tail later

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Title: Re: 70s Era CB750 Plunger Hellride
Post by: irk miller on Oct 14, 2017, 20:14:11
(https://uploads.tapatalk-cdn.com/20171014/4a4905633c8c8bb6d455347ee5a8b48a.jpg)


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Title: Re: 70s Era CB750 Plunger Hellride
Post by: canyoncarver on Oct 14, 2017, 21:00:43
well, that was quick.
Title: Re: 70s Era CB750 Plunger Hellride
Post by: SONIC. on Oct 14, 2017, 21:14:29
(https://uploads.tapatalk-cdn.com/20171014/4a4905633c8c8bb6d455347ee5a8b48a.jpg)
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Didn't anyone ever tell you not to give in to peer pressure?
Title: Re: 70s Era CB750 Plunger Hellride
Post by: Hurco550 on Oct 14, 2017, 22:24:06
Ha

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Title: Re: 70s Era CB750 Plunger Hellride
Post by: trek97 on Oct 15, 2017, 00:39:13
They look so sad.

Can I have them?
Title: Re: 70s Era CB750 Plunger Hellride
Post by: irk miller on Oct 15, 2017, 02:15:27
(https://uploads.tapatalk-cdn.com/20171015/6d7143af75863e69a53b5544695f7785.jpg)


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Title: Re: 70s Era CB750 Plunger Hellride
Post by: irk miller on Oct 15, 2017, 02:24:07
Ever since the deal with Kelly to get the frame, lots of research has happened. If it were a legit Amen or original plunger, I would've kept it a plunger no matter what. The more I dug, the more I realized someone added a plunger kit in the 70s.

As the research goes, there is only one suspension worse then a hardtail and that's a plunger. Awful ride and awful handling. Plus they destroy your drivetrain because the  suspension acts independently since there's no swing arm. Talking to some old school chopper guys, the only way to fix them is to add a torsion bar. I decided to make it a hardtail instead.




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Title: Re: 70s Era CB750 Plunger Hellride
Post by: SONIC. on Oct 15, 2017, 02:29:00
Time to change the name  8)
Title: Re: 70s Era CB750 Plunger Hellride
Post by: stroker crazy on Oct 15, 2017, 05:29:53
there is only one suspension worse then a hardtail and that's a plunger.

True!

Even with a swing arm they're pretty dubious.

Crazy
Title: Re: CB750 No Plunger Hellride
Post by: trek97 on Oct 15, 2017, 07:19:50
I see your point now.
I thought it would be similar to the older BMW models.  But, after looking closer, I now realize the BMWs do have a fully active swing arm.  Along w utilizing the drive shaft tube.  Just kinda hard to see exactly whats happening there as most are painted black and that suspension is hardly noticeable.

Learn something everyday...check.

(http://www.dotheton.com/gallery/11494-151017051541.png)
Title: Re: CB750 No Plunger Hellride
Post by: clem on Oct 15, 2017, 10:49:11
Sell those things to a plumber and use the money to buy more radness for this bike.

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Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Oct 15, 2017, 12:12:37
Sell those things to a plumber and use the money to buy more radness for this bike.

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Ha!  I can't keep my washing machine drain from clogging.  Maybe I can throw those fuckers down there. 
Title: Re: CB750 No Plunger Hellride
Post by: Redbird on Oct 15, 2017, 12:58:35
I have that inclination but I kinda want to stick with the plunger, if only because there aren't many out there. 
As the research goes, there is only one suspension worse then a hardtail and that's a plunger.
If that's the case, I think I would've welded up the Plunger in a fixed position and ran that instead. That way it would ride like a hardtail, but look like a plunger.
Sadly (for me), the frame has lost it's "hook", and now looks like a cookie cutter hardtail.
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Oct 15, 2017, 13:56:53
If that's the case, I think I would've welded up the Plunger in a fixed position and ran that instead. That way it would ride like a hardtail, but look like a plunger.
Sadly (for me), the frame has lost it's "hook", and now looks like a cookie cutter hardtail.
Sorry to disappoint.  It was a hard decision that I went back and forth on for months.  Thanks for making it easier.  It's not a cookie cutter kit to turn it into a hard tail and it's not cookie cutter axle plates.  That's all done by me in my own design.  I figured I'd lose some fans of this build with the decision, but I gained a few inches in length to sit (which it needed) and I won't wobble and die at high speeds (which is common with plungers).  Not sure how welding up the plunger to make it into a fake plunger is better than turning it into a hardtail.  I'm not into faking things.  I might not always do it right, but I do it honestly.  Considering I've just been told that it's a waste of these USD forks on a hardtail, I'm definitely building a roster of vocal critics.  I'm sure this build will attract way more vocal critics than I have now. 
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Oct 15, 2017, 14:58:01
I recycled the plunger axle plates and boxed them out. Put in torsion bars to stiffen up the frame.

(https://uploads.tapatalk-cdn.com/20171015/535b4d370b08e8e39ec61c29dd5b0a43.jpg)

(https://uploads.tapatalk-cdn.com/20171015/b59f0e5659377eae32bb0c061020feaf.jpg)

(https://uploads.tapatalk-cdn.com/20171015/f6d897b6481a37a8769b87c3c1078549.jpg)


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Title: Re: CB750 No Plunger Hellride
Post by: Redbird on Oct 15, 2017, 15:41:33
I wasn't trying to bash or suggest you should do anything differently. Nor am I disappointed. I'm of the opinion that "it's your bike, do whatever makes you happy".
I'm no Bob/Chop suspension (or anything else) expert, but it seemed to me the "unusualness" of the plunger rear was the draw. Now it no longer has that.
And all I was "pondering" with making a fake plunger was to keep the unusualness of it while improving the function. Fundamentally the same premise as using a vintage headlight and/or taillight shell, but installing LED fixtures/bulbs to improve visibility/safety.

But you do you dude. Don't let me interrupt. I'll keep my uneducated musings to myself, as not to be lumped in with the rabble rousers ;) :P
Title: Re: CB750 No Plunger Hellride
Post by: Cookie on Oct 15, 2017, 16:21:47
"The Hellride Formerly Known as Plunger"?

Lol

True it loses some uniqueness without the plunger  rear end, but as you said Irk, it wasn't born that way, and the plunger that were cobbled from hardtails were even more unsafe than the handrails they started out as. Kind of like those guys who make a "hardtail" by bolting some steel rod in where the rear shocks used to be.

It may not have the same character, but it's still pretty sexy looking! My only gripe is that you seem to be able to turn out projects faster than I can read your posts about them!

And I for one like the forks. Wasteful or not, they give it character that a cookie cutter hardtail will otherwise lack.
Title: Re: CB750 No Plunger Hellride
Post by: trek97 on Oct 15, 2017, 17:32:16
Captain America's got what you need.  LOL
(http://www.dotheton.com/gallery/11494-151017153116.jpeg)

Maybe a little more this...
(http://www.dotheton.com/gallery/11494-151017153418.png)

You definitely gotta do the king/queen w sissy bar.
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Oct 15, 2017, 20:39:50
Captain America's got what you need.  LOL
(http://www.dotheton.com/gallery/11494-151017153116.jpeg)

Maybe a little more this...
(http://www.dotheton.com/gallery/11494-151017153418.png)

You definitely gotta do the king/queen w sissy bar.


Ha! I doubt I'll do that seat. You saw that Schwinn girder front I got from Levi, right? That goes on the bike I got from you.


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Title: Re: CB750 No Plunger Hellride
Post by: canyoncarver on Oct 15, 2017, 22:14:40
I like the new length and the bracing.  Do you think you'll have to run a mid-chain tensioner ?
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Oct 15, 2017, 22:20:20
I like the new length and the bracing.  Do you think you'll have to run a mid-chain tensioner ?
Not sure.  The length really doesn't seem bad.  I'm waiting on the screws to mount the rear sprocket then I'll measure it up.  The local dealer didn't have a long 520 chain in stock, so I have to order.  I have a tensioner here just in case. 
Title: CB750 No Plunger Hellride
Post by: irk miller on Oct 16, 2017, 17:15:09
Nothing like getting a couple of days off for Fall Break and literally spending all day on a bracket to mount your coils #noglory

 (https://uploads.tapatalk-cdn.com/20171016/2ad29a2206eb6faa4c1efc2d538aba3c.jpg)


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Title: Re: CB750 No Plunger Hellride
Post by: Maritime on Oct 16, 2017, 23:12:47
Thats a clean and tight mount. I like it and with the hardtail the rear tire looks better to me too.
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Oct 17, 2017, 01:02:32
Thanks, Mike.

A couple quick little updates...

(https://uploads.tapatalk-cdn.com/20171017/93f001ea962010fa5497dc2326e77e08.jpg)(https://uploads.tapatalk-cdn.com/20171017/c8bc2076103bfa936285c4d65aafb418.jpg)

Brakes: I have to figure out a tab for the rear stay. Something I can try to machine tomorrow.

(https://uploads.tapatalk-cdn.com/20171017/a3d9f27c5c82cb5503e18260dd779c90.jpg)
(https://uploads.tapatalk-cdn.com/20171017/bda6dc556e81d001a2602243ffd25c26.jpg)

Sprockets: I'm running a 38 tooth rear and a 14 tooth counter. The counter sprocket is an XL250 sprocket, with a machined spacer.  Honda ran a common counter shaft tooth for several bikes, which is really convenient when you want to convert a CB750 to 520 chain.


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Title: Re: CB750 No Plunger Hellride
Post by: canyoncarver on Oct 17, 2017, 01:16:24
Way better pics.  I dig how you did the axle plate now I can see it.    Cool.
Title: CB750 No Plunger Hellride
Post by: irk miller on Oct 17, 2017, 11:31:18
Machined a brake stay and got it mounted...

(https://uploads.tapatalk-cdn.com/20171017/4c4ca1bd4d2182eb7148f1301887dcef.jpg)
(https://uploads.tapatalk-cdn.com/20171017/0535c302e1f12ea90d8db1330c977716.jpg)


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Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Oct 17, 2017, 20:35:31
More brake stuff (lines will eventually be SS AN )...

(https://uploads.tapatalk-cdn.com/20171017/80313a456cababbcd34460e3d559ac4f.jpg)

(https://uploads.tapatalk-cdn.com/20171017/da49e5ee2ff4a32aa58530f094851437.jpg)

(https://uploads.tapatalk-cdn.com/20171017/78e5a62a5b653d4616539e56c7bed366.jpg)


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Title: Re: CB750 No Plunger Hellride
Post by: Hurco550 on Oct 17, 2017, 21:13:28
yep. I agree with sonic. You need to slow down. your making us all look bad.

In 2 days you have gotten more done than I do in months on my projects lol

Lookin good bro
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Oct 18, 2017, 00:00:56
Started making a seat pan. I really just want to be able to sit down on it...

(https://uploads.tapatalk-cdn.com/20171018/65253d8a587fb611022b8ea7b95b24a1.jpg)


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Title: Re: CB750 No Plunger Hellride
Post by: JustinLonghorn on Oct 19, 2017, 09:47:47
Fuck yeah, man!
Title: Re: CB750 No Plunger Hellride
Post by: SONIC. on Oct 19, 2017, 20:04:56
This is getting dangerously close to looking like you know what you're doing.
Once you're no longer a hack you're not welcome here anymore  ;D

(http://newtheory.com/wp-content/uploads/2015/12/yoda-you-must-unlearn.png)
Title: CB750 No Plunger Hellride
Post by: irk miller on Oct 20, 2017, 02:02:05
I promise, I'm still a hack.

I've decided to go with a first gen XL350 tank, because I like the shape and I have an idea for placement of my ignition switch. I saw opportunity in the cutout for the carb.  This tank is just for mocking. A good tank is en route...

(https://uploads.tapatalk-cdn.com/20171020/5f05dfe2e86a0e8fa522d23381e24d86.jpg)

Seat pan is basically done. Waiting on the springs, then mount. Covering may be the last thing I do.

(https://uploads.tapatalk-cdn.com/20171020/070dde350d2d3abb9c832bbead61cab3.jpg)


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Title: Re: CB750 No Plunger Hellride
Post by: trek97 on Oct 20, 2017, 07:35:06
(http://www.dotheton.com/gallery/11494-200816163635.png)
Title: Re: CB750 No Plunger Hellride
Post by: WhyNot on Oct 20, 2017, 10:42:18
Man Eric, that is nice, just wish I had some of your gumption to do something to the "too many" projects I have.
Title: Re: CB750 No Plunger Hellride
Post by: advCo on Oct 20, 2017, 11:06:47
Yes dude, that 350 tank is the biz.
Title: Re: CB750 No Plunger Hellride
Post by: 1fasgsxr on Oct 20, 2017, 13:19:56
Man Eric, that is nice, just wish I had some of your gumption to do something to the "too many" projects I have.

I agree...I am just lazy I guess... You are killing it on this thing !!
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Oct 21, 2017, 19:34:08
Made a remote m/c and reservoir so I can run a simple cable control on the bars.  The unit will get welded underneath the tank and  a short Z50r cable will actuate the lever.

(https://uploads.tapatalk-cdn.com/20171021/6264d56bf80095c5de1a253638de8ab7.jpg)


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Title: Re: CB750 No Plunger Hellride
Post by: Hurco550 on Oct 22, 2017, 00:02:31
Made a remote m/c and reservoir so I can run a simple cable control on the bars.  The unit will get welded underneath the tank and  a short Z50r cable will actuate the lever.

(https://uploads.tapatalk-cdn.com/20171021/6264d56bf80095c5de1a253638de8ab7.jpg)


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Looks great! Just curious why you didn't use the beemer under tank mc? Thought you had a spare

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Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Oct 22, 2017, 01:42:52
Looks great! Just curious why you didn't use the beemer under tank mc? Thought you had a spare

Sent from my SM-G920V using Tapatalk

The BMW m/c is too wide and too tall, itís built for the top of the frame, itís prone to leak, and I gave mine to Charlie at Thaw.


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Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Oct 22, 2017, 01:44:20
The seat is mounted and I finally got to sit on it.

(https://uploads.tapatalk-cdn.com/20171022/d80310c92675eaf160586fe37253e7c9.jpg)

(https://uploads.tapatalk-cdn.com/20171022/5f453e0cf08ece66a3478d8dd05f1c5d.jpg)


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Title: Re: CB750 No Plunger Hellride
Post by: trek97 on Oct 22, 2017, 08:02:36
The seat is mounted and I finally got to sit on it.


Well then, how'd it fit?
Title: Re: CB750 No Plunger Hellride
Post by: trek97 on Oct 22, 2017, 08:18:36
Deserving of some hipster sprinkles.

(http://www.dotheton.com/gallery/11494-221017061720.png)
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Oct 22, 2017, 12:35:47
(https://uploads.tapatalk-cdn.com/20171022/f734b20d96da951ac2602ba9272d7679.jpg)


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Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Oct 22, 2017, 13:41:15
Progress shot. Still waiting on the good condition tank and Iím crossing my fingers on a couple of eBay auctions for a rear fender...

(https://uploads.tapatalk-cdn.com/20171022/bf728e750267eac8ed26cbba1276b0eb.jpg)


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Title: Re: CB750 No Plunger Hellride
Post by: Maritime on Oct 23, 2017, 08:28:09
This thing is really shaping up nice. I'm liking it a lot now. Excited to see the finished product.
Title: Re: CB750 No Plunger Hellride
Post by: Cookie on Oct 23, 2017, 09:11:52
This thing is coming along fantastically Eric!

If your eBay fender prospects fall through, PM Me, I might be able to help out.
Title: CB750 No Plunger Hellride
Post by: irk miller on Oct 24, 2017, 02:08:45
Thanks, Cookie. I got the priority fender, so weíll see how this goes.

I took a chance on a homemade $10 oil tank on Ebay. I was pretty sure it had 750 size connections and it in fact did. The question is if 1.25 quarts is enough.

(https://uploads.tapatalk-cdn.com/20171024/650f4d16d10a2b5bb4d0e85b136da583.jpg)

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Title: Re: CB750 No Plunger Hellride
Post by: jag767 on Oct 24, 2017, 08:50:37
How much would the capicity go up with an oil cooler?
Title: Re: CB750 No Plunger Hellride
Post by: cxman on Oct 24, 2017, 10:08:40
add a remote oil filter and use the long chevy filter that will boost it a quart with the lines
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Oct 25, 2017, 00:17:17
The new XL350 tank got delivered today. Itís got a few dings, but man the patina is glorious. Iíll have to think really hard about painting this tank. 

(https://uploads.tapatalk-cdn.com/20171025/de03c71827d464c86f9dc0c881635688.jpg)

I also began work on a Cush drive conversion experiment. Itís an RM250 wheel, so no Cush. I could swap for DR350s, but people want silly money for them.  I still have a few details to work out, including casting the urethane innards...

(https://uploads.tapatalk-cdn.com/20171025/b0e34fcc42178d7efd3ca0cc4f3b08d3.jpg)

(https://uploads.tapatalk-cdn.com/20171025/5faf77754b5b594a7907d24dd2f16b61.jpg)


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Title: Re: CB750 No Plunger Hellride
Post by: Hurco550 on Oct 25, 2017, 08:52:56
The new XL350 tank got delivered today. Itís got a few dings, but man the patina is glorious. Iíll have to think really hard about painting this tank. 

(https://uploads.tapatalk-cdn.com/20171025/de03c71827d464c86f9dc0c881635688.jpg)

I also began work on a Cush drive conversion experiment. Itís an RM250 wheel, so no Cush. I could swap for DR350s, but people want silly money for them.  I still have a few details to work out, including casting the urethane innards...

(https://uploads.tapatalk-cdn.com/20171025/b0e34fcc42178d7efd3ca0cc4f3b08d3.jpg)

(https://uploads.tapatalk-cdn.com/20171025/5faf77754b5b594a7907d24dd2f16b61.jpg)


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that tank is the beez kneez. Don't know how far you'll get between fill ups, but my guess is you'll be aching for a break at that point anyways
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Oct 25, 2017, 09:01:58
that tank is the beez kneez. Don't know how far you'll get between fill ups, but my guess is you'll be aching for a break at that point anyways
No more than if it had a Frisco, Peanut, Wassel, Axed, Coffin, Prism, Sportster, or Alien tank.  It's exactly the same volume. 
Title: Re: CB750 No Plunger Hellride
Post by: Hurco550 on Oct 25, 2017, 09:20:12
No more than if it had a Frisco, Peanut, Wassel, Axed, Coffin, Prism, Sportster, or Alien tank.  It's exactly the same volume.
Yeah I guess I hadn't even thought about it compared to it regular old Chopper tank

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Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Oct 25, 2017, 09:32:31
Yeah I guess I hadn't even thought about it compared to it regular old Chopper tank

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Which basically means... I'll be stopping a lot.  LOL

Title: Re: CB750 No Plunger Hellride
Post by: Hurco550 on Oct 25, 2017, 09:43:28
Which basically means... I'll be stopping a lot.  LOL
Saddlebag gas can ftw. (https://uploads.tapatalk-cdn.com/20171025/c658a94cbae49c02b1a9b251855b0ae0.jpg)

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Title: Re: CB750 No Plunger Hellride
Post by: 1fasgsxr on Oct 25, 2017, 10:01:25
Yup that tank is the one and I would not paint it either.
Title: Re: CB750 No Plunger Hellride
Post by: canyoncarver on Oct 25, 2017, 12:29:01
Which basically means... I'll be stopping a lot.  LOL

Yeah.  My 3.5 gal tank on my chop only get me so far and I'm usually ready to stop by then anyways.   

I dig that tank you got.  I vote keep the patina.
Title: Re: CB750 No Plunger Hellride
Post by: advCo on Oct 25, 2017, 12:41:24
Where's the patina? All i see is a rogue rattle can spot on the side  ???
Title: Re: CB750 No Plunger Hellride
Post by: Maritime on Oct 25, 2017, 12:51:22
Where's the patina? All i see is a rogue rattle can spot on the side  ???

That's not rattle can, that's were knees have rubbed through the red to expose the black base coat.
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Oct 25, 2017, 13:15:29
That^
Title: Re: CB750 No Plunger Hellride
Post by: Hurco550 on Oct 25, 2017, 13:29:36
alright, so now you gotta change out the seat or put high mid controls on so your knees match the rub marks lol

you cant look like a poser here

Added benefit, you can cut a hole in the seat and have a squatty potty.

(https://uploads.tapatalk-cdn.com/20171025/87ec10835462da642a0dd3797a9569af.jpg)(https://uploads.tapatalk-cdn.com/20171025/e76969395234a24e06adec51719a45ce.jpg)
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Oct 25, 2017, 13:39:23
alright, so now you gotta change out the seat or put high mid controls on so your knees match the rub marks lol

you cant look like a poser here

Added benefit, you can cut a hole in the seat and have a squatty potty.


Ha!  I'm not moving the pegs from their stock location, so it may be a bit like that.  I don't want forward controls.  Although that thing looks like the pegs are raised.
Title: Re: CB750 No Plunger Hellride
Post by: Hurco550 on Oct 25, 2017, 13:42:17
Ha!  I'm not moving the pegs from their stock location, so it may be a bit like that.  I don't want forward controls.  Although that thing looks like the pegs are raised.
Yeah those are called high mids. I've never cared for the looks but I'm led to believe it's for turning lean clearance... since Choppers are high performance handling machines and all

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Title: Re: CB750 No Plunger Hellride
Post by: canyoncarver on Oct 25, 2017, 14:09:42
Yeah those are called high mids. I've never cared for the looks but I'm led to believe it's for turning lean clearance... since Choppers are high performance handling machines and all

"California Dyna Bros"  love those high mids.  Me, mids yes, high mids hell no.

You'll need to "shop your look" though.......     ;)

Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Oct 26, 2017, 22:01:16
A little update on the front brake rig. A motor mount fit perfectly with just a little bend...

(https://uploads.tapatalk-cdn.com/20171027/650cd3748c5cb04285cc8adabc364b46.jpg)


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Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Oct 29, 2017, 12:19:51
I bobbed and shaved a Harley Softail rear fender.

(https://uploads.tapatalk-cdn.com/20171029/5d09866ad902c7283fe033692b5d485d.jpg)

(https://uploads.tapatalk-cdn.com/20171029/37970c291e8bf91311f3b9ea53d3b5b1.jpg)

Hereís what it looked like before for reference:

(https://uploads.tapatalk-cdn.com/20171029/afc4f46659fec20e47cd3383592e49af.png)


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Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Oct 29, 2017, 15:42:00
Turn signal switch

(https://uploads.tapatalk-cdn.com/20171029/8b39f115a8f1bf3cb0ef4660d9cd1fea.jpg)


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Title: Re: CB750 No Plunger Hellride
Post by: trek97 on Oct 29, 2017, 18:16:13
Thats a good job on the fender metal shaping.
Title: Re: CB750 No Plunger Hellride
Post by: stroker crazy on Oct 29, 2017, 19:13:31
Thats a good job on the fender metal shaping.

A major improvement!

Crazy
Title: Re: CB750 No Plunger Hellride
Post by: Maritime on Oct 29, 2017, 19:19:08
Yep great work on the fender.
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Oct 29, 2017, 23:22:34
(https://uploads.tapatalk-cdn.com/20171030/870505ff9423e37af155eb5fae457b6d.jpg)


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Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Nov 02, 2017, 00:49:08
The fender is officially mounted. Also running an old Harley tail light. The lens was pretty scratched, but a 1200 grit wet sand and Meguiarís 105 hand rub later and itís nice and shiny like new...

(https://uploads.tapatalk-cdn.com/20171102/84443f8348ae5043d912018308c4658f.jpg)

(https://uploads.tapatalk-cdn.com/20171102/1f7161350c6aeea46378ac8e50200dbe.jpg)

(https://uploads.tapatalk-cdn.com/20171102/248c82cb721d4aa7bb25efe9921488f0.jpg)


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Title: Re: CB750 No Plunger Hellride
Post by: JustinLonghorn on Nov 02, 2017, 09:27:27
Yep.
Title: Re: CB750 No Plunger Hellride
Post by: canyoncarver on Nov 02, 2017, 12:02:26
Awesome!
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Nov 03, 2017, 00:51:03
(https://uploads.tapatalk-cdn.com/20171103/f36c154e5204d3cb75fe1fbc510e0a15.jpg)

I decided to mount the oil tank tight to the engine. Except now my stock feed line just slightly wont fit. It may not be an issue anyway if I run an oil cooler.  I may run a cooler in the bottom of the frame behind the motor.


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Title: Re: CB750 No Plunger Hellride
Post by: WhyNot on Nov 03, 2017, 06:46:41
Dayyyyyyum Eric, you get that thing done, we definitely need to go out for a ride around Augusta.

I like that bike.  Good job.
Title: Re: CB750 No Plunger Hellride
Post by: canyoncarver on Nov 03, 2017, 12:05:51
I'd vote yes to the oil cooler, you live in the south and it'll add room for a bit more oil than that little tank can hold.  The oil cooler I added to my chop sure helps with summer oil temps.
Title: Re: CB750 No Plunger Hellride
Post by: Maritime on Nov 03, 2017, 13:07:02
+1 on the cooler and this thing is rad.
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Nov 03, 2017, 13:22:47
I ordered a cooler from a 2003 Eiger 400.  A shot in the wind on size, so we'll have to see when it arrives.  If it doesn't work for the chop, then it can go on my DR350 since they are fundamentally the same engine.
Title: Re: CB750 No Plunger Hellride
Post by: doc_rot on Nov 03, 2017, 19:08:25
I'm digging that 19" rear wheel
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Nov 03, 2017, 19:34:14
I'm digging that 19" rear wheel
Thanks, Doc.  It's a different look for a chop, but I like it.  One caveat, obviously, is the lack of tire options which is why I went medium compound flat track for a fatter tire.  Avon makes an rear tire (AM7 4.00-19) that I may try next.  It's a cool looking vintage tire with more of a square patch.  The only other options I've found are a Metzler Block-C (3.5-19) , Avon MKII (3.50-19) and the Avon Roadriders (3.25-19), which are front/back tires.
Title: Re: CB750 No Plunger Hellride
Post by: Hurco550 on Nov 09, 2017, 08:48:49
are you slacking?

its been like 6 days without an update.

 Unacceptable.
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Nov 09, 2017, 08:52:03
are you slacking?

its been like 6 days without an update.

 Unacceptable.
No one wants to pay me the money they owe me  :( , so I'm broke.  I found a DR350 cush hub though, that a guy is sending me for the cost of shipping.  :D
Title: Re: CB750 No Plunger Hellride
Post by: Hurco550 on Nov 09, 2017, 08:54:03
No one wants to pay me the money they owe me  :( , so I'm broke.  I found a DR350 cush hub though, that a guy is sending me for the cost of shipping.  :D
If you need the sprocket carrier hub for it.. I've got one

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Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Nov 09, 2017, 08:55:32
If you need the sprocket carrier hub for it.. I've got one

Sent from my SM-G920V using Tapatalk
Thanks!  He said he thinks he lost one of the rubbers.  Do you have those too?
Title: Re: CB750 No Plunger Hellride
Post by: john83 on Nov 15, 2017, 23:52:33
Damn you work quick. That's a good looking chopper you've got coming along there sir.
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Nov 16, 2017, 07:59:26
Thanks, John.  It's somewhat stalled for the moment.  I have some decisions to make and they're making movement slow. 
Title: Re: CB750 No Plunger Hellride
Post by: SONIC. on Nov 16, 2017, 11:05:10
I expected this to be finishes by now.
And then cut up into something else and that would be finished too.
Slacking
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Nov 16, 2017, 11:08:43
I expected this to be finishes by now.
And then cut up into something else and that would be finished too.
Slacking
LOL.  eBay sellers are fucking slow to ship sometimes.  I did, however, get my DR running again last night.  It's ready for some Tennessee trails.
Title: Re: CB750 No Plunger Hellride
Post by: surffly on Nov 16, 2017, 11:17:18
Needs more finned engine covers!
I know a guy....lol
Title: Re: CB750 No Plunger Hellride
Post by: Hurco550 on Nov 16, 2017, 12:52:20
I did get my DR running again last night.  It's ready for some Tennessee trails.

DUDE YESSSSSSSSSS
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Nov 18, 2017, 02:21:31
(https://uploads.tapatalk-cdn.com/20171118/e68e57b583f32404cbcb219eb5efe50e.jpg)

I was able to get a DR350 hub from a member at ADVrider. I reached out to Buchanan to see if we can match some spokes.


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Title: Re: CB750 No Plunger Hellride
Post by: clem on Nov 18, 2017, 18:08:18
How wide is that there hub?

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Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Nov 18, 2017, 22:26:42
How wide is that there hub?

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6 3/4"
Title: Re: CB750 No Plunger Hellride
Post by: clem on Nov 19, 2017, 23:12:31
Pretty slim. For some odd reason I've got the envie to put a set of spoke rims on my RD. Was looking at the KLR 650 stuff but have no ideas on dimensions on those.

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Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Nov 21, 2017, 13:46:47
A little update:

Front brake is done.

Iím running a Z50 cable from the lever to the m/c. Then a 3an straight fitting instead of a banjo...

(https://uploads.tapatalk-cdn.com/20171121/7469735eaef42d8e597df6ab566a79fb.jpg)

(https://uploads.tapatalk-cdn.com/20171121/6ea1bf4bdc869c10859dbd981d83e637.jpg)

(https://uploads.tapatalk-cdn.com/20171121/c430c4c91040eead71177c37de317b1e.jpg)

The caliper has a banjo to 3an fitting.

(https://uploads.tapatalk-cdn.com/20171121/a8945976ec751fd1a6c661d12f8db82c.jpg)

Then the top fork guard mount is altered (tabs removed) to accommodate a brake line guide. The line runs through a machined sleeve of black acetal.

(https://uploads.tapatalk-cdn.com/20171121/9e1437a349aa515f9d42e014cfac6bfb.jpg)

(https://uploads.tapatalk-cdn.com/20171121/51bf47fd0167568fa5788b60890b34d3.jpg)


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Title: Re: CB750 No Plunger Hellride
Post by: Maritime on Nov 21, 2017, 13:54:20
Slick
Title: Re: CB750 No Plunger Hellride
Post by: 1fasgsxr on Nov 21, 2017, 15:55:59
This damn thing is awesome !
Title: Re: CB750 No Plunger Hellride
Post by: trek97 on Nov 21, 2017, 21:19:05
(http://www.dotheton.com/gallery/11494-200816163635.png)
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Nov 21, 2017, 21:31:53
Thanks, yíall.

A little Rub ní Buff makes the plastic blend like aluminum...

(https://uploads.tapatalk-cdn.com/20171122/ad9f7601a578117ea601333da701fe60.jpg)


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Title: CB750 No Plunger Hellride
Post by: irk miller on Nov 30, 2017, 21:35:06
Just to keep this thread a-moviní along...

Iím kind of stuck trying to get the oil cooler/tank situation sorted. First, I ordered an Eiger oil cooler, which was too long. So, I swung again and tried a Suzuki Intruder oil cooler...

(https://uploads.tapatalk-cdn.com/20171201/dd9e8327e2fab5e480aaa6e7c7059cf4.jpg)

Muuuuch better.

I also ordered some extra length of SS line to give me some extra volume...

(https://uploads.tapatalk-cdn.com/20171201/913ced80c78279ebbc199b6354227e66.jpg)

Then I separated the case fittings from the stock lines, which basically match to 10an hose...

(https://uploads.tapatalk-cdn.com/20171201/a5e1024c7fcaa8e9fcec40a6da6fe470.jpg)

Now, itís just a waiting game on some hose finishers and the fittings for the cooler. Iíll convert the banjo fittings to a setup with M12x1.0 to -10an fittings.

Note to self: donít order from China unless itís a last resort. You prefer days over weeks for delivery. Nothing stalls a build like this.




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Title: Re: CB750 No Plunger Hellride
Post by: canyoncarver on Nov 30, 2017, 21:51:22
Just to keep this thread a-moviní along...

Note to self: donít order from China unless itís a last resort. You prefer days over weeks for delivery. Nothing stalls a build like this.


Truth.
Title: Re: CB750 No Plunger Hellride
Post by: Hurco550 on Nov 30, 2017, 23:00:36



Note to self: donít order from China unless itís a last resort. You prefer days over weeks for delivery. Nothing stalls a build like this.

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Its funny though, I ordered rotors from China for the interceptor and they were on my door step in less than 3 days. Its a crap shoot

Sent from my SM-G920V using Tapatalk

Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Dec 05, 2017, 01:36:01
Oil stuff

---> oil tank ---> cooler ---> motor inlet ---> motor outlet ---> oil tank --->

(https://uploads.tapatalk-cdn.com/20171205/e2207c7363437b5dfefffcfa7203bc8b.jpg)

(https://uploads.tapatalk-cdn.com/20171205/76a4112e67098fb38d67ef31a8618f2f.jpg)

(https://uploads.tapatalk-cdn.com/20171205/08f34644beb828bd72ff1ffc1c4ded9b.jpg)


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Title: Re: CB750 No Plunger Hellride
Post by: canyoncarver on Dec 05, 2017, 12:01:08
Looking good.  Something tells me you are itching to ride this one.
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Dec 05, 2017, 14:15:40
Big time.


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Title: Re: CB750 No Plunger Hellride
Post by: trek97 on Dec 05, 2017, 19:57:11
Looking good.  Something tells me you are itching to ride this one.

He's just itchy cause he needs a bath.
Title: Re: CB750 No Plunger Hellride
Post by: Hurco550 on Jan 10, 2018, 12:01:14
i just got the 30 day reply notice. This is ridiculous. You have too many bmw's distracting you.

NEED.


MORE.


























CHOPPAHHHHHHHHH!
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jan 10, 2018, 12:12:43
CHOPPAHHHHHHHHH!

Hahahaha!  If people didn't turn to all dirt for Thaw, maybe I wouldn't feel so pressured to get something to ride there.  Seriously though, I'm teaching myself leather working for this mutha's seat.
Title: Re: CB750 No Plunger Hellride
Post by: Hurco550 on Jan 10, 2018, 12:22:22
Hahahaha!  If people didn't turn to all dirt for Thaw, maybe I wouldn't feel so pressured to get something to ride there.  Seriously though, I'm teaching myself leather working for this mutha's seat.

heard that man. I have a few things i wanted to do on my beemer this winter, but alas all my time has been spent on the dr650.

#thawprep
Title: CB750 No Plunger Hellride
Post by: irk miller on Jan 21, 2018, 19:10:36
Made a few moves on the chopper and maybe hit a snag too:

 I pulled the cover, checked compression, and a few other bits to get an idea of the life of this motor. Itís showing 160 compression across all 4 cylinders.but the motor lost power above 60mph and fouled the #4 plug. I always thought electrical, and Iím back to thinking that again.  For now, I buttoned it back up in anticipation of wiring. 

Next, I installed the F2 exhaust and found that it doesnít quite clear the frame at the collector and hangs low enough to give me shit for lean clearance.  Fuck.

(https://uploads.tapatalk-cdn.com/20180121/5f85e0676a651f865f73adbfc4c77874.jpg)

I have to decide if I want to alter this exhaust with some heat to get the clearance and pull it tight to frame, or fork out the dough for another exhaust. I could probably afford another exhaust for what these can sell for.

(https://uploads.tapatalk-cdn.com/20180121/2340e1716dc33a2d2b43c499e63b2609.jpg)

Otherwise, Iím very close to wiring it up and at least hearing it run.

(https://uploads.tapatalk-cdn.com/20180121/0dcf7c634ad6a4ece11b387abeb9463b.jpg)

Also: seconds thoughts on the style of seat, so weíll hold off on covering until there are no doubts.

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Title: Re: CB750 No Plunger Hellride
Post by: canyoncarver on Jan 21, 2018, 22:20:15
Man that looks good.  What kind of second ideas on the seat?  I like that one. 
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jan 21, 2018, 22:27:03
Man that looks good.  What kind of second ideas on the seat?  I like that one.
Trying to decide if I want a seat that is more boxed out underneath to hide electronics.  I have that box you sent me with the frame, but I may try to go a little more hidden.  I do like this seat, and with the Italian leather, it could be sexy. Just thinking through electric ideas and ways to hide it.
Title: Re: CB750 No Plunger Hellride
Post by: trek97 on Jan 21, 2018, 22:38:15
Dude thats looking awesome.
Title: Re: CB750 No Plunger Hellride
Post by: WhyNot on Jan 22, 2018, 06:55:09
^^^^^^What Trek said^^^^^^............................dayyyyum.

Title: Re: CB750 No Plunger Hellride
Post by: JustinLonghorn on Jan 25, 2018, 15:47:12
I dig the stance, sir. Well done. Very well done. 
Title: Re: CB750 No Plunger Hellride
Post by: doc_rot on Jan 25, 2018, 19:09:23
using the dirt-bike forks for length and leading axle is genius. nice work
Title: Re: CB750 No Plunger Hellride
Post by: Rider52 on Jan 25, 2018, 19:50:26
Great job!!!!
Title: Re: CB750 No Plunger Hellride
Post by: Popeye SXM on Jan 25, 2018, 20:04:46
Hell I don't normally go for choppers, but I like your's, maybe it's usd forks. Perhaps a higher seat with the electrics underneath?? Great work
Title: Re: CB750 No Plunger Hellride
Post by: Ryan Stecken on Jan 26, 2018, 08:38:35
Hey irk!May I ask how did you get that nice tank to fit?did you cut out something on the bottom and weld something back in like on the BMW build?

thanks
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jan 26, 2018, 08:42:40
Hey irk!May I ask how did you get that nice tank to fit?did you cut out something on the bottom and weld something back in like on the BMW build?

thanks
Because it's a chopper frame, it pretty much just fit.  The XL frame it came off of basically has the same spine.
Title: Re: CB750 No Plunger Hellride
Post by: Ryan Stecken on Jan 26, 2018, 08:54:52
Nice thanks man!
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Apr 14, 2018, 21:00:55
Local guy was selling a HD and 72 XS tank fit cheap, so I picked them up to test out...

HD tank doesnít look bad at all...




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Title: Re: CB750 No Plunger Hellride
Post by: Hurco550 on Apr 14, 2018, 21:40:47
That Harley tank does fit the bill. Still like the patina Honda one though

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Title: Re: CB750 No Plunger Hellride
Post by: canyoncarver on Apr 15, 2018, 16:50:57
I like that tank on your bike alot.  Fits the lines well.  I had another thought.  I would go with a longer front end.  Crazy maybe but , another few inches, it would sit the engine slightly more vertical and help with the ground clearance with the pipes.  I like those with the leading axles you have, maybe drop triples for a different offset ? 
It would also be rad.

Either way, I wanna see this one through.  I dig your chop.
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Apr 15, 2018, 19:20:31
I had another thought.  I would go with a longer front end.  Crazy maybe but , another few inches, it would sit the engine slightly more vertical and help with the ground clearance with the pipes.  I like those with the leading axles you have, maybe drop triples for a different offset ? 
It would also be rad.

It's possible that the forks are dropped an inch or two from the weight of the bike.  I haven't gotten Doug to set these forks up for this bike yet, since I need to have it more compete to give him the weight.  I've definitely noticed it drops under weight. 
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Apr 15, 2018, 19:33:56
Something else I'm looking at, which may be too bulky, is this Paughco seat I got a good deal on...

(http://www.dotheton.com/gallery/77150-150418173221.jpeg)
Title: Re: CB750 No Plunger Hellride
Post by: cbrianroll on Apr 16, 2018, 15:01:04
Haven't been on in a while, looking awesome man! I like the other seat.

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Title: Re: CB750 No Plunger Hellride
Post by: 1fasgsxr on Apr 17, 2018, 10:21:50
I like the other one, but my butt is not gonna be sitting on it so.... ;)
Title: Re: CB750 No Plunger Hellride
Post by: The Jimbonaut on Apr 20, 2018, 10:44:23
 Man I love the lines on your bike, such a cool profile.  Me I prefer the bobber-style seat pan more but yeah, my ass won't be sitting on it either   :o
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Apr 20, 2018, 10:50:43
Haha. No comfort, no worries.  I still plan to make a leather seat for it with the pan I made.  It occurred to me the other night that the Softail seat might make sense on a GL I have stored away.  We'll see.
Title: Re: CB750 No Plunger Hellride
Post by: The Jimbonaut on Apr 20, 2018, 11:07:45
Ha!  No comfort, no worries - sounds like the mantra my wife and I lived by when we spent three summers living in our '78 VW camper van/mobile oven in Ibiza
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on May 13, 2018, 15:09:23
A while back, I bought a CR500 front end specifically for a chopper build.  It was my original intent for this build. Then I tried out the RM front and thought is was neat and different.   Well, with a low clearance issue I decided to revisit the CR front end. Much better ride height and I think a better look...




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Title: Re: CB750 No Plunger Hellride
Post by: Redbird on May 13, 2018, 18:03:06
What happened to the boxed plunger axle plates?
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on May 13, 2018, 21:10:36
What happened to the boxed plunger axle plates?
I swapped it out.  I'm trying to make it as boring as I can.  But seriously, they had an upswing I needed to sort out so I ended up re-doing the whole rear end altogether.
Title: Re: CB750 No Plunger Hellride
Post by: trek97 on May 13, 2018, 21:35:35
I did prefer how the Honda tank sat lower on the frame.  But thats just me.

Its looking really good this way too. 
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on May 14, 2018, 00:02:01
I did prefer how the Honda tank sat lower on the frame.  But thats just me.

Its looking really good this way too.

We may go back.  Lots of looking, fitting, and swapping still to come.  I like the XL tank, too.  This HD tank is a little more capacity and doesn't have the cutout meant for a carb like the XL tank.
Title: Re: CB750 No Plunger Hellride
Post by: SONIC. on May 14, 2018, 10:09:10
But....But.... now it just looks like a chopper   :-\

I know I suck. Gotta call it like I see it!
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on May 14, 2018, 10:27:30
Ha!  I like choppers.   ::)
Title: Re: CB750 No Plunger Hellride
Post by: JustinLonghorn on May 14, 2018, 12:31:17
I dig this front end a lot more, Irk.
Title: Re: CB750 No Plunger Hellride
Post by: Maritime on May 14, 2018, 13:03:13
I like this front too. Tank is ok too, maybe you can paint a couple and swap them out every once and a while for a different look depending on your mood.
Title: Re: CB750 No Plunger Hellride
Post by: canyoncarver on May 16, 2018, 16:40:26
Can you remove that plastic dookie from the rear disc?

I dig the hd tank and new frontend.
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on May 16, 2018, 18:30:17
Can you remove that plastic dookie from the rear disc?

Absolutely.  That will go away.  I actually have a different DR350SE hub to swap out.  I'm just motivating myself to take this wheel apart.  Right now it rolls and with all the shit I have in the garage, i like that it rolls.
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on May 17, 2018, 20:41:53
Not really happy with my oil bag setup, I decided to suck it up and go with a pill. I was really hoping to be atypical, but this is really a sweet little doodad...




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Title: Re: CB750 No Plunger Hellride
Post by: Ryan Stecken on May 18, 2018, 04:08:38
I love the pill!
Title: Re: CB750 No Plunger Hellride
Post by: canyoncarver on May 18, 2018, 11:51:23
Will it be a Red Pill or Blue Pill?
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on May 20, 2018, 00:44:45
Took the rear wheel apart to swap hubs only to discover a crack. I heard a pop when taking the tire off. Couldíve been then. Couldíve been before. Itís a used RM250 rim, so I expect it had a hard life. Fine excuse to buy a new rim...




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Title: Re: CB750 No Plunger Hellride
Post by: MiniatureNinja on May 20, 2018, 13:06:13
probably the only downside to aluminium - bummer!
Title: Re: CB750 No Plunger Hellride
Post by: Sonreir on May 21, 2018, 11:14:53
I've got a spare 21" aluminum wheel if you want it.
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on May 21, 2018, 11:27:17
I've got a spare 21" aluminum wheel if you want it.

Much thanks!  I went ahead and ordered a new hoop.  I like the idea of having a fresh hoop. 
Title: Re: CB750 No Plunger Hellride
Post by: Sonreir on May 21, 2018, 11:34:51
(https://emojipedia-us.s3.amazonaws.com/thumbs/120/emoji-one/104/thumbs-up-sign_1f44d.png)
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on May 24, 2018, 23:56:09
Got the new rear rim laced to the cush hub. Now Iím trying to motivate myself to mount a tire.



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Title: Re: CB750 No Plunger Hellride
Post by: Maritime on May 25, 2018, 08:26:40
Nice. I just picked up the motorcycle mount stand from HF for 25% off and no tax, haven't tried it yet but it's supposed to work well. It will at least put the tire at waste height so I won't have to kneel on the floor LOL. Also grabbed the balance/truing stand to go with it.
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on May 25, 2018, 09:02:55
Nice. I just picked up the motorcycle mount stand from HF for 25% off and no tax, haven't tried it yet but it's supposed to work well. It will at least put the tire at waste height so I won't have to kneel on the floor LOL. Also grabbed the balance/truing stand to go with it.
I didn't go with the HF truing stand because it's not tall enough for 21" wheels.  This one I got through Amazon, iirc.
Title: Re: CB750 No Plunger Hellride
Post by: Maritime on May 25, 2018, 09:21:11
Cool. I didn't think of that but since it was 25% off of 30.00 I grabbed it. Better than an old axle and jack stands I used to use.  That hoop looks great, what kind of tyre are you putting on it?
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on May 25, 2018, 11:21:03
Putting the same Shinko flat track tire that was on it before.

(https://www.cyclegear.com/_a/product_images/0214/8930/shinko_tires267268_flat_track_tires_750x750.jpg)
Title: Re: CB750 No Plunger Hellride
Post by: Maritime on May 25, 2018, 11:46:07
Cool. I like those
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on May 29, 2018, 18:02:32
Spending a little time catching back up from the ground I lost changing the hub and oil tank.  I machined the spacers to get the rear wheels sorted.  The sprocket and rotor are en route, so there may be adjustments still to come.  One thing I'm figuring out, the DR350 and the RM shared a lot of parts.  The DR350SE and the RM do not. 

(http://www.dotheton.com/gallery/77150-290518155237-38231706.jpeg)

I also plumbed the oil tank.  It took going from 1/4" npt at the tank to 10AN in the lines and the motor.  I drilled out the adapter fitting coming from the 1/4" npt elbow at the tank to keep the flow from the motor consistent.  There is very little options out there for a 1/4" npt to 10AN adapters.  These ones came straight from China (the fitting coming from the stainless steel elbows at the tank and connecting to the 10AN elbows for the ss lines)

(http://www.dotheton.com/gallery/77150-290518155239-3825860.jpeg)

(http://www.dotheton.com/gallery/77150-290518155241-38261183.jpeg)

Title: Re: CB750 No Plunger Hellride
Post by: irk miller on May 29, 2018, 22:21:10
Got the seat back to mounted, as well.  I tried to neaten up the spring mounts by machining and threading some delrin bushings.

(http://www.dotheton.com/gallery/77150-290518201220-3832901.jpeg)

(http://www.dotheton.com/gallery/77150-290518201222-38331275.jpeg)

The bushing in the first pic slides into the spring and mounts the spring to the seat.  Then, the bottom of the spring slides onto the bushings threaded onto the frame.  This allows the seat to hinge up.

(http://www.dotheton.com/gallery/77150-290518201224-38341958.jpeg)

(http://www.dotheton.com/gallery/77150-290518201225-3835519.jpeg)

(http://www.dotheton.com/gallery/77150-290518201229-38372129.jpeg)
Title: Re: CB750 No Plunger Hellride
Post by: Sonreir on May 30, 2018, 11:10:41
Nice.
Title: Re: CB750 No Plunger Hellride
Post by: JustinLonghorn on May 30, 2018, 11:34:55
Looking proper, sir.
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on May 30, 2018, 12:55:11
Thanks, homies. Almost back to where it was before changes. Just need to sort the rear fender and weíre caught back up.




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Title: Re: CB750 No Plunger Hellride
Post by: SONIC. on May 30, 2018, 13:00:49
I like the seat mounts.

And I'll begrudgingly admit that I like the bike too. Even though it's a chopper. Just don't tell anyone I said so.
Title: Re: CB750 No Plunger Hellride
Post by: canyoncarver on May 30, 2018, 13:12:22
Love it.  Seat, tank, forks, oilbag.....all head towards chopper glory!
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jun 10, 2018, 21:55:15
Machined a bung to thread a low profile cap screw to work as a brake stay.  Not the best pic, but hopefully you get the idea...

(http://www.dotheton.com/gallery/77150-100618194954-3887661.jpeg)

Aaaaand like a tennis match...

(http://www.dotheton.com/gallery/77150-100618194953-38862133.jpeg)
Title: Re: CB750 No Plunger Hellride
Post by: JustinLonghorn on Jun 11, 2018, 06:59:36
Andre Agassi and the XL tank... Game-Set-Match.
Title: Re: CB750 No Plunger Hellride
Post by: Maritime on Jun 11, 2018, 09:35:24
Yep, that's the match for sure.
Title: Re: CB750 No Plunger Hellride
Post by: SONIC. on Jun 11, 2018, 09:37:41
I love that it's too long for the stand
Looking good man!
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jun 11, 2018, 09:58:18
I love that it's too long for the stand

Ha!  I thought about building another one, but fuck it.  This shows how much longer the chop is to a 360.  LOL
Title: Re: CB750 No Plunger Hellride
Post by: The Jimbonaut on Jun 11, 2018, 11:08:15
That looks absolutely killer man, nicely done.  I would do things considered highly immoral to flightless poultry for a chance to fling a leg over it.
Title: Re: CB750 No Plunger Hellride
Post by: Brodie on Jun 11, 2018, 19:13:40
Xl tank looks better on there anyway.
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jun 11, 2018, 19:19:20
Xl tank looks better on there anyway.

You, sir, are right.  I was worried the XL tank was too small for the pig of a motor the 750's are.  Not the case.  It fits the profile much better.
Title: Re: CB750 No Plunger Hellride
Post by: Maritime on Jun 11, 2018, 20:22:59
What about widening it so from the top it covets more of the motor but frome the side stays the same?
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jun 12, 2018, 00:00:34
Redid the rear fender struts...

(http://www.dotheton.com/gallery/77150-110618212546-38881682.jpeg)

(http://www.dotheton.com/gallery/77150-110618212548-3889271.jpeg)

(http://www.dotheton.com/gallery/77150-110618212551-38911180.jpeg)
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jun 14, 2018, 21:41:58
I decided to get a better seat hinge.  It's still not the top dollar hinge, but it should suit my needs.  One thing, though, I didn't like about it is the hinge pin was a basic nut and bolt.  Nothing fancy, and certainly nothing nice looking.  So instead, I upgraded it a bit by machining a delrin hinge pin. 

(http://www.dotheton.com/gallery/77150-140618192924-3898302.jpeg)

Sometimes it's a bunch of effort for the simplest things.

(http://www.dotheton.com/gallery/77150-140618192925-39001561.jpeg)

(http://www.dotheton.com/gallery/77150-140618192927-39011886.jpeg)

The pin stays stationary, while the hinge rotates around it and it will hold in an upright position, which will make working under the seat easy.

(http://www.dotheton.com/gallery/77150-140618192928-3902205.jpeg)

Title: Re: CB750 No Plunger Hellride
Post by: Pete12 on Jun 15, 2018, 11:23:54
Sometimes it's a bunch of effort for the simplest things.

Ain't that the truth - the last 5% of a project takes ten times longer than it took to do the original 95%...
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jun 16, 2018, 11:07:55
I decided to forgo the Softail tail light for one I machined myself. This bike is officially de-Harleyíd...

(http://www.dotheton.com/gallery/77150-160618091747-39042365.jpeg)


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Title: Re: CB750 No Plunger Hellride
Post by: Maritime on Jun 18, 2018, 08:36:17
Nice
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jun 21, 2018, 02:37:45
After digging around, I realized the oil inlet has to be gravity fed.  The pump does not pull oil from the reservoir.  So, add another bung to the bottom and now we have it right...

(http://www.dotheton.com/gallery/77150-210618002948.jpeg)
Title: Re: CB750 No Plunger Hellride
Post by: canyoncarver on Jun 21, 2018, 12:22:53
Getting oil to the engine.....seems important.
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jun 25, 2018, 21:51:29
In searching for a small victory in motorcycles and life, in general, I found one with the rear brake. I ordered the wrong length line and the wrong thread pitch fittings the first time. Now itís right...




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Title: Re: CB750 No Plunger Hellride
Post by: JustinLonghorn on Jun 26, 2018, 07:49:22
(https://media.giphy.com/media/CkKg32KdKyMve/giphy.gif)
Title: Re: CB750 No Plunger Hellride
Post by: canyoncarver on Jun 26, 2018, 13:23:15
Go!
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jun 26, 2018, 13:47:14
Where to cut the tail pipe... or not.




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Title: Re: CB750 No Plunger Hellride
Post by: Sonreir on Jun 26, 2018, 14:05:43
Need another bend in it so it can stick straight up. lol
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jun 26, 2018, 14:08:02
Need another bend in it so it can stick straight up. lol
Haha.  Yeah, like a 30į bend at the axle.
Title: Re: CB750 No Plunger Hellride
Post by: Sonreir on Jun 26, 2018, 14:09:35
Or a 90į when compared against the hard tail.
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jun 26, 2018, 14:27:27
Pipe measures 25į, so a 45į puts it at 70į to level.  I think that will work.
Title: Re: CB750 No Plunger Hellride
Post by: canyoncarver on Jun 26, 2018, 15:06:28
I like fishtails personally.  If you stick that pipe straight up, don't forget your tractor pipe flapper.  ;)
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jun 26, 2018, 15:08:11
I like fishtails personally.  If you stick that pipe straight up, don't forget your tractor pipe flapper.  ;)
Hahaha!
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jun 26, 2018, 22:38:09
Went with my original plan (at least for now) of cutting  the pipe just behind the axle and machining an end cap to fit.


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Title: Re: CB750 No Plunger Hellride
Post by: Brodie on Jun 26, 2018, 22:49:11
Shmick
Title: Re: CB750 No Plunger Hellride
Post by: trek97 on Jun 26, 2018, 23:30:12
Its so bad ass bro.  But are you gonna have to pull the exhaust to get the wheel off?
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jun 26, 2018, 23:40:05
Its so bad ass bro.  But are you gonna have to pull the exhaust to get the wheel off?
Yes and no.  The one bolt to the exhaust bracket could be removed and the pipe pushed up slightly for better access.  The axle, when pushed furthest back, should clear the pipe with the bracket bolt still mounted. 
Title: Re: CB750 No Plunger Hellride
Post by: trek97 on Jun 27, 2018, 06:46:14
Yes and no.  The one bolt to the exhaust bracket could be removed and the pipe pushed up slightly for better access.  The axle, when pushed furthest back, should clear the pipe with the bracket bolt still mounted.

NICE!  Just enough is all you need.   8)
Title: Re: CB750 No Plunger Hellride
Post by: Hurco550 on Jun 28, 2018, 14:40:17
NICE!  Just enough is all you need.   8)
Reminds me of the often used quote in the machining field...

"Clearance is clearance" no matter how little there is lol

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Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jun 28, 2018, 14:44:53
Reminds me of the often used quote in the machining field...

"Clearance is clearance" no matter how little there is lol

Sent from my SM-G920V using Tapatalk
Ha!  When we were designing the art school for Temple, we're in a meeting choosing equipment.  The fork lift would be shared, so I needed approvals from all departments.  The Sculpture professor argued with me about the unit I recommended because there was only 1" of clearance from the highest point of the fork lift to the smallest door it would need to go through.  I had a hell of a time convincing her that even 1/4" clearance works because fork lifts don't grow.  And when their tires wear, they actually get shorter.  Blew their minds.
Title: Re: CB750 No Plunger Hellride
Post by: Hurco550 on Jun 28, 2018, 14:55:21
Sounds like educational bureaucracy at its finest. I can't count the times in our trade school that a decision was made for a purchase by the least qualified individual to make said decision, due only to their position in management. Then later on, we are asked why "we never use xxxx piece of equipment?"

On the forklift thing, the last place I worked, we had a lift that the mast wouldn't fit though one doorway by about 1.5"... until the new guy straight up Larry enticer sent it full speed while not paying attention. It now fits, if only in the same spot, just to the left of center iirc lol

Sent from my SM-G920V using Tapatalk

Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jun 28, 2018, 19:37:06
Still making changes, I converted the exhaust to slash cut...

(http://www.dotheton.com/gallery/77150-280618173412-39831216.jpeg)

(http://www.dotheton.com/gallery/77150-280618173413-3984611.jpeg)

(http://www.dotheton.com/gallery/77150-280618173414-3985751.jpeg)

(http://www.dotheton.com/gallery/77150-280618173416-39861776.jpeg)
Title: Re: CB750 No Plunger Hellride
Post by: JustinLonghorn on Jun 28, 2018, 21:31:49
Proper.
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jun 29, 2018, 01:42:59
I stripped the rest of the paint off the fender, ran the factory flat spot through the English wheel to match the fender profile and now Iím filling holes. When itís done, only the round and oval hole above the square will remain.




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Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jun 29, 2018, 13:55:02
Needs a little filler, but goodínuff.



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Title: Re: CB750 No Plunger Hellride
Post by: trek97 on Jun 29, 2018, 14:33:02
Still making changes, I converted the exhaust to slash cut...

(http://www.dotheton.com/gallery/77150-280618173416-39861776.jpeg)

Yes sir.
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jun 29, 2018, 17:45:19
Might not seem like much, but I added an inch to the fender struts and moved their angle to match the down tube in front of the seat. This changes the fenderís orientation so that it matches the wheel shape much more neatly. It makes for some nice  filigree.




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Title: Re: CB750 No Plunger Hellride
Post by: JustinLonghorn on Jun 29, 2018, 18:44:10
Much much better. I am a fan of matching the angle of either the downtube or the front forks.
Title: Re: CB750 No Plunger Hellride
Post by: Pete12 on Jun 29, 2018, 19:26:39
Might not seem like much, but I added an inch to the fender struts and moved their angle to match the down tube in front of the seat. This changes the fenderís orientation so that it matches the wheel shape much more neatly. It makes for some nice  filigree.
That looks a lot better, guard fits the wheel nicely now.
Title: Re: CB750 No Plunger Hellride
Post by: Maritime on Jun 29, 2018, 21:05:27
Yep
 Better for sure. You and your fancy filigree ;D
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jun 29, 2018, 23:23:48
Final post about the exhaust to finish up the tail pipe on the inlet...

(http://www.dotheton.com/gallery/77150-290618211749-398749.jpeg)

(http://www.dotheton.com/gallery/77150-290618211752-3989300.jpeg)

(http://www.dotheton.com/gallery/77150-290618211755-39912362.jpeg)
Title: Re: CB750 No Plunger Hellride
Post by: trek97 on Jun 30, 2018, 05:50:23
Well now, that'll put the pinch to it. 
Title: Re: CB750 No Plunger Hellride
Post by: 3DogNate on Jul 02, 2018, 21:28:15
Sweet child of mine... that looks cool. keep cuttin' and weldin'
Title: Re: CB750 No Plunger Hellride
Post by: Maritime on Jul 04, 2018, 10:48:07
Slick
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jul 12, 2018, 18:10:12
I took some time off from working on the Mid-Ohio haul to make the chain tensioner.  I machined the drum and welded an old gear shift lever to it and a cap screw to the shift lever.  I machined a bronze bushing to insert into the drum, then on the backside I machined a delrin bushing to fill around the bronze. 

In all but the last pic, the arm is basically straight.  In the completed unit, I bent an "S" into the lever which centers the skateboard wheel over the pivot and moves it clear of the frame.

In this pic are all the components minus the spacer to go behind the skateboard wheel that centers it to the chain.
(http://www.dotheton.com/gallery/77150-120718152111-40371124.jpeg)

This is the backside of the tensioner, where the delrin surrounds the bronze.

(http://www.dotheton.com/gallery/77150-120718151555-40352167.jpeg)

Here's the unit put together with the spring from a kickstart mechanism.  One thing that changes on the spring from what you see in the pic, I spread the first coil out to help put more tension on the spring and to help it spring back a little better.  That may not have been necessary, but it doesn't hurt either.

(http://www.dotheton.com/gallery/77150-120718153940-404077.jpeg)

Another view of the arm and pivot.  Notice the drum isn't machined square, but instead has a curve to it.  This helps the spring move toward the arm and keeps it from binding in front of the mechanism.  It also gives it more throw, as the way the spring works the ID shrinks when the tensioner actuates.  I didn't want the spring too loose, but too tight kept it from swinging very far and it would bind.

(http://www.dotheton.com/gallery/77150-120718153941-4041849.jpeg)

This is the pic of the completed tensioner.  The arm is bent, which moves the wheel back toward the center of the bike.  The arm is also shorter than in the previous pics.

(http://www.dotheton.com/gallery/77150-120718155254-40421304.jpeg)

(http://www.dotheton.com/gallery/77150-120718155255-40432394.jpeg)
Title: Re: CB750 No Plunger Hellride
Post by: advCo on Jul 12, 2018, 18:22:07
Slick as shit man. Nice.  8)
Title: Re: CB750 No Plunger Hellride
Post by: Maritime on Jul 12, 2018, 18:29:06
Yep. Thats awesome
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jul 12, 2018, 20:14:52
I haven't taken any pics from this side.

(http://www.dotheton.com/gallery/77150-120718181313.jpeg)
Title: Re: CB750 No Plunger Hellride
Post by: WhyNot on Jul 13, 2018, 06:39:58
Man, that is slick.

Looks like you'll have this on the road b4 I get my lazy azz out and fix my carbs, and get mine running again.

Nice work Eric.
Title: Re: CB750 No Plunger Hellride
Post by: Pete12 on Jul 13, 2018, 10:52:12
Hey Irk, nice bike for sure, but what's the black coupe behind it?
Title: Re: CB750 No Plunger Hellride
Post by: Brodie on Jul 13, 2018, 11:04:00
Wall art.
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jul 13, 2018, 11:11:25
Wall art.

Haha.  For now it is, Brodie.  Except it's more the wall than the art.

Hey Irk, nice bike for sure, but what's the black coupe behind it?

It's a 1970 Plymouth Roadrunner.
Title: Re: CB750 No Plunger Hellride
Post by: advCo on Jul 13, 2018, 11:24:08
A 21' long shelf? I have one of those but its a few feet shorter.  ;D
Title: Re: CB750 No Plunger Hellride
Post by: canyoncarver on Jul 13, 2018, 12:11:28
The chain tensioner is slick.  I dig that it even uses the cool Peralta wheel.   I hope this bike makes it to Barber.
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jul 13, 2018, 12:19:28
The chain tensioner is slick.  I dig that it even uses the cool Peralta wheel.   I hope this bike makes it to Barber.
Thanks, homie.  I have every intention of bringing this to Barber.
Title: Re: CB750 No Plunger Hellride
Post by: Pete12 on Jul 15, 2018, 07:29:03

It's a 1970 Plymouth Roadrunner.
Sweet, when are you starting on that :D
Title: Re: CB750 No Plunger Hellride
Post by: irk miller on Jul 15, 2018, 10:36:51
Sweet, when are you starting on that :D

Haha.  2033, or next summer. My brother and I both have one from my dad.  His was the one dad drove in high school.  Mine is one he traded for a flatbed of creosote fencing lumber in 1981.  Not having a garage and my mother sick of a bunch of cars, boats and campers littering the property got my bro and I an early inheritance. It sat under a black walnut tree untouched for 30 years so, needless to say, it needs a lot of work.
Title: Re: CB750 No Plunger Hellride
Post by: Pete12 on Jul 15, 2018, 19:45:19
Great story, and whether it's next summer or 2033, I'm looking forward to it. Always been a Mopar fan, unfortunately we didn't get any of those in Australia,
Apologies for the thread hijack..