Author Topic: CB750 Cafe/Endurance Project  (Read 39653 times)

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Offline beveldrive

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CB750 Cafe/Endurance Project
« on: December 02, 2009, 04:08:40 am »
Hi,
First post on my new Honda project.
In fact, first Honda project ever, for me :)

Started out with a standard 750K7 and my intention is to build part café, part endurance racer – a kind of CB750 equivalent to Eddie Lawson’s Kawasaki. So far I’ve refreshed the motor with new camchain/primary chains/tensioners, ring and valve job, seals, gaskets etc.
So with that all done and a coat of paint here is the refirbished motor:



So far, I’ve collected the following bits:
New Kiehin 29mm CRs (Dynoman)
Single GRP seat (Yamaha SRX, Ebay, Germany)
Arrow Race can (Ebay)
Marving 4 into 1 pipe (Ebay)









I sold the original tank but a spare came with the bike and I’m going to use the that with welded down flap and alloy monza filler. Wheels will be rebuilt with Morad (Akront) alloy rims.
I’ve given a lot of thought to the front end but for the time being I’m gonna leave it standard. GL1000 would be the obvious choise but these are not freely available here in the UK.

Now the motor is done next step is to clean-up the frame, remove all the unwanted brackets and get some rearset mountings on. Oh, and modify the frame to accept the SRX seat.

I'll keep ya posted
Steve

Offline HedNut

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Re: CB750 Cafe/Endurance Project
« Reply #1 on: December 02, 2009, 04:45:45 am »
Very Cool!...love the seat shape..good choice.  I can't wait to see this come together.

Offline andy750

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Re: CB750 Cafe/Endurance Project
« Reply #2 on: December 02, 2009, 05:04:30 am »
Looking good Steve and I like the idea of the Endurance racer. Ill be watching this project to see how you mod the seat.

Good luck
Andy

Current bikes
1. CB750K4: Long distance bike, 17 countries and counting...2001 - Trans-USA-Mexico, 2003 - European Tour, 2004 - SOHC Easy Rider Trip , 2008 - Adirondack Tour 2-up , 2013 - Tail of the Dragon Tour , 2017: 836 kit install and bottom end rebuild. And rebirth: http://forums.sohc4.net/index.php/topic,173213.msg2029836.html#msg2029836
2. CB750/810cc K2  - road racer with JMR worked head 71 hp
3. Yamaha Tenere T700 2022

Where did you go on your bike today? - http://forums.sohc4.net/index.php?topic=45183.2350

Offline beveldrive

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Re: CB750 Cafe/Endurance Project
« Reply #3 on: December 02, 2009, 05:32:36 am »
Thanks guys
Yeah, I realise that seat isn't gonna be a straighforward fit. But seeing as the SRX project wasn't gonna happen, it was just beggin to be used on the 750!

Obviously I'm not going to be able to use the hinges and locking arrangement from the original. Prob use sime kind of quick-release fasteners, like a 'Zues' turn-lock type.

Should sound awesome with that Arrow pipe  ;D

Offline sander

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Re: CB750 Cafe/Endurance Project
« Reply #4 on: December 02, 2009, 06:47:58 am »
That's a nice seat!! It's got the shape i'm looking for...

Offline beveldrive

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Re: CB750 Cafe/Endurance Project
« Reply #5 on: February 22, 2010, 09:23:08 am »
On to the frame – I've chemically stripped this. Never again, I’ll get it blasted next time! Frame had one or two rust holes in the lower/front down tubes, but I’ve now MIG welded these and all looks good.
I’m going to keep the standard tank, but weld in the fuel flap to become an integral part. An alloy Monza cap will sit central. The SRX seat, it has to be said, is not a great fit. But I love it and I'll make it fit, if it’s the last thing I do! Some brackets on the top tubes and a ‘hoop’ toward the rear should see it fixed . Neither will the seat be easy to hinge, so some sort of turnlock fastener will have to be used. But on a ‘race’ influenced bike, what the hell.




I'll keep you posted on the seat fitting.

Offline fasturd

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Re: CB750 Cafe/Endurance Project
« Reply #6 on: February 22, 2010, 09:33:39 am »
I have to agree the seat is cool! MAKE IT FIT!...lol.

Should be pretty cool. Keep posting pics.
13 in the garage and counting...

Link to my link...   http://forums.sohc4.net/index.php?topic=58422.0

Offline HedNut

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Re: CB750 Cafe/Endurance Project
« Reply #7 on: March 04, 2010, 12:26:08 pm »
YEP! Seat is bad ass wicked!  Keep'r for sure.

Offline beveldrive

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Re: CB750 Cafe/Endurance Project
« Reply #8 on: March 07, 2010, 08:51:55 am »
Well, didn't get as much done this week as I'd hoped. But I did get the seat mounts sorted and the frame primed ready for colour coat.









The tabs on the rear are for indicator mountings.

Offline shorterdanny

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Re: CB750 Cafe/Endurance Project
« Reply #9 on: March 07, 2010, 11:33:58 am »
sweeeeeeeeeet seat i want it!!!!!  that with some nice drag bars..smoking hot.
1983 Honda CBX 750
1978 CB750 K7

Offline beveldrive

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Re: CB750 Cafe/Endurance Project
« Reply #10 on: August 14, 2010, 10:26:17 am »
Other stuff has meant progress has been very slow, but have laced up the new alloy rims and made the decision to go for the ‘urban scrambler’ look! Tyres are Bridgestone dual-purpose, but I won’t be taking this baby off the tarmac – strictly street.




Offline andy750

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Re: CB750 Cafe/Endurance Project
« Reply #11 on: August 15, 2010, 07:50:54 am »
Wow looks great! What model are those tyres? I need a set!
Current bikes
1. CB750K4: Long distance bike, 17 countries and counting...2001 - Trans-USA-Mexico, 2003 - European Tour, 2004 - SOHC Easy Rider Trip , 2008 - Adirondack Tour 2-up , 2013 - Tail of the Dragon Tour , 2017: 836 kit install and bottom end rebuild. And rebirth: http://forums.sohc4.net/index.php/topic,173213.msg2029836.html#msg2029836
2. CB750/810cc K2  - road racer with JMR worked head 71 hp
3. Yamaha Tenere T700 2022

Where did you go on your bike today? - http://forums.sohc4.net/index.php?topic=45183.2350

Offline lofton05

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Re: CB750 Cafe/Endurance Project
« Reply #12 on: August 15, 2010, 07:56:26 am »
good looking bike...question for you I'm thinking of painting my motor.  What steps did you go through in preping yours for painting?  Thanks

Offline KB02

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Re: CB750 Cafe/Endurance Project
« Reply #13 on: August 15, 2010, 09:25:03 am »


Looking great. I had the same idea. I was thinking of getting 2" over shocks and fork tubes to increase clearance but the stance you gave looks killer.
1978 CB750K Project
2000 Ducati ST2
...and a pedal bike

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My project thread Part I: K8 Project "Parts Bike"
My project thread Part II: Finishing (yeah, right) touches on Project "Parts Bike"

Offline beveldrive

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Re: CB750 Cafe/Endurance Project
« Reply #14 on: August 15, 2010, 01:36:18 pm »
Thanks Guys, glad you like it.
The tyres are Bridgestone TW24 on Morad (Akront) alloy rims with stainless spokes. I've fitted 18"x4" front and rear.
I'd say the best way to prep the motor for paint is to steam clean or vapour blast. But I'm a bit of a skinflint, so it was petrol, blunt screwdriver and toothbrush for the initial cleaning, followed by hot water and detergent. Works well.

Steve

Offline HedNut

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Re: CB750 Cafe/Endurance Project
« Reply #15 on: August 16, 2010, 05:10:51 am »
Awesome!! Love the tires!! And the overall look of the bike....it's turning out SLICK!

Offline tweakin

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Re: CB750 Cafe/Endurance Project
« Reply #16 on: August 16, 2010, 05:31:53 am »
Very cool build.  Way to think outside the box.

Offline beveldrive

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Re: CB750 Cafe/Endurance Project
« Reply #17 on: August 16, 2010, 11:33:48 am »
Thanks Guys,
couple more pics - the bike and detail of the smoooothed tank top and 'Monza' fuel cap.




Steve

Offline KB02

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Re: CB750 Cafe/Endurance Project
« Reply #18 on: August 17, 2010, 04:20:28 am »
That's looking really slick.
1978 CB750K Project
2000 Ducati ST2
...and a pedal bike

Join the AMA today!!

My project thread Part I: K8 Project "Parts Bike"
My project thread Part II: Finishing (yeah, right) touches on Project "Parts Bike"

Offline Grnrngr

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Re: CB750 Cafe/Endurance Project
« Reply #19 on: August 17, 2010, 05:24:40 am »
Very nice!! I like the seat too...where are you gonna mount the light/plate?
« Last Edit: August 17, 2010, 05:26:31 am by grnrngr »
'72 CB750-K2 "PopCycle"
'73 CB750-K2 "Barney"
'77 CB750A   
'83 Virago 500 (red)
'83 Virago 500 (black)

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Offline beveldrive

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Re: CB750 Cafe/Endurance Project
« Reply #20 on: August 17, 2010, 11:42:40 am »
Plate and light fit on fabricated mounting bars, like this:




Steve

Offline greenjeans

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Re: CB750 Cafe/Endurance Project
« Reply #21 on: August 17, 2010, 01:19:56 pm »
good lord - finish this one quick.   I can't wait to see it finished. 

Definitely going to keep my eye on this build.   That tank turned out fantastic -  and that seat looks like it could have come that way from the factory.

Going to be unique that's for sure.   Keep it going.
Yep, I'm the kid that figured out how to put things back together...eventually.

Offline beveldrive

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Re: CB750 Cafe/Endurance Project
« Reply #22 on: August 17, 2010, 10:09:06 pm »
Thanks
Yes, I was never keen on that fuel flap - it had to go! But I love the shape of the K7 tank, so to weld in a 'patch' was the way to go.
Must admit, this project has been sitting still for a while, but i'm picking up speed on it now. I'll keep ya posted.

Offline BrianAdair

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Re: CB750 Cafe/Endurance Project
« Reply #23 on: August 17, 2010, 10:30:30 pm »
Thanks Guys,
couple more pics - the bike and detail of the smoooothed tank top and 'Monza' fuel cap.




Steve

That tank looks GREAT man!
I have the same tank and was thinking of doing this, where did you get you Monza fuel cap?
Did you weld or braze? Did you use the lid cover that came on the tank stock or did you fab a piece to fit in the tank?
Looking good!

Offline Jinxracing

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Re: CB750 Cafe/Endurance Project
« Reply #24 on: August 18, 2010, 03:14:57 am »
...where did you get you Monza fuel cap?

I don't know where beveldrive got his, but I searched for months here in the States and finally found a pdf catalog page for a place in Florida. I ordered a flanged Monza cap from them and it's very cool.

Do a Google search for: ASTON & MONZA FILLER CAPS and it should be the first result.
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