Author Topic: Maduncle's brat style CB750F - now called "The carb eater"  (Read 76880 times)

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maduncle

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Re: Maduncle's brat style CB750F build project
« Reply #25 on: May 18, 2011, 04:19:39 AM »

I dropped off the smoothed top triple at the workshop today, and took a couple of shots of the bike. It looks a bit busy in the photos with all the background stuff, but you can see the headlamp mounted with the bowl painted in the same stripe as the tank.



And the oil tank is in place.



One minor problem at the moment - one of the adjusting screws in the carbies is stripped - I can't remember what it adjusts but is is a short length of 5mm fine thread (0.5mm pitch) with a slot across the top for screwdriver adjusting.

I am searching the internet for them now, but if anyone knows where to get them - please let me know.

maduncle

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Re: Maduncle's brat style CB750F build project
« Reply #26 on: May 19, 2011, 04:20:00 AM »

So anyway - I called in to the workshop to drop off the toolkit tray that goes under the seat as it is going to be used to mount the alarm system, and the smooth top triple is on so I took a photo.



It looks fantastic - thanks to ffjmoore for the part, I mean - that part is the reason I am on this forum now and having a great time most nights reading all the project threads.

Offline Coyote13

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Re: Maduncle's brat style CB750F build project
« Reply #27 on: May 19, 2011, 06:54:41 AM »
Progress!!!! That shaved triple looks killer man, this thing is gonna be a beaut!
'78 CB750K.  Throttle ripper.
'71 CB100.  Grocery getter.
'01 XL883.  Panty dropper. Gone but not forgotten.

Offline Raef

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Re: Maduncle's brat style CB750F build project
« Reply #28 on: May 19, 2011, 07:55:01 PM »
I haven't gotten any farther than these and....



These are frickin COOL.


Offline Flying J

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Re: Maduncle's brat style CB750F build project
« Reply #29 on: May 19, 2011, 08:45:54 PM »
Hey, your welcome. So how did you happen to find my part?

maduncle

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Re: Maduncle's brat style CB750F build project
« Reply #30 on: May 19, 2011, 09:17:38 PM »

Hey raef - glad you like the stacks, Mike at Steel Dragon Performance is a pleasure to deal with and his stuff is not all that expensive, in fact - standard aluminium stacks are cheap. Mine were double the normal cost as the solid brass billet was pretty expensive.

Hey ffjmoore - believe it or not, I Goggled 'CB750 top triple' as I was planning to find an old stock one and modify it myself, and your thread came up with the picture of the shaved and filled triple!

Offline Retro Rocket

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Re: Maduncle's brat style CB750F build project
« Reply #31 on: May 20, 2011, 06:00:22 AM »
Mike  from Steel dragon is actually a member here..... ;) ;D
750 K2 1000cc
750 F1 970cc
750 Bitsa 900cc
If You can't fix it with a hammer, You've got an electrical problem.

Offline brandEn

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Re: Maduncle's brat style CB750F build project
« Reply #32 on: May 20, 2011, 09:10:57 AM »
subscribed, nice work!

Offline Tete

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Maduncle's brat style CB750F build project
« Reply #33 on: May 27, 2011, 01:07:39 AM »
Suscribed!! Good stuff
1973 Honda CB500Four
1975 CB200T

maduncle

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Re: Maduncle's brat style CB750F build project
« Reply #34 on: May 27, 2011, 04:19:24 AM »

So you want to see just how good Mike's stacks look?





They look great!

So now I am just waiting for the last few parts, got a muffler coming from USA and brake lines from England and hopefully I am on the road mid June.

Offline Syscrush

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Re: Maduncle's brat style CB750F build project
« Reply #35 on: May 27, 2011, 05:20:52 AM »
Noice!
Life is precious: wear your f'n helmet!
There's nothing more expensive than a free bike...
FWIW, I'm not a shill for Race Tech - I've just got a thing for good suspension and the RTCE's are the most cost-effective mod for these old damping rod front ends.

Offline WhyNot2

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Re: Maduncle's brat style CB750F build project
« Reply #36 on: May 27, 2011, 08:03:24 AM »
I like it......I like it.............. :)

Gr8 work...................... 8)
If it ain't raining, I'm riding.....~~{iii}?~~prost

If it sounds like I know what I'm talking about, it's because I cut and pasted from someone else.

Offline Syscrush

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Re: Maduncle's brat style CB750F build project
« Reply #37 on: May 27, 2011, 08:09:24 AM »
You do realize that you've gotta clean the hell out of those carbs now, right? :)
Life is precious: wear your f'n helmet!
There's nothing more expensive than a free bike...
FWIW, I'm not a shill for Race Tech - I've just got a thing for good suspension and the RTCE's are the most cost-effective mod for these old damping rod front ends.

Offline stay youth

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Re: Maduncle's brat style CB750F build project
« Reply #38 on: May 27, 2011, 02:38:42 PM »
Hi I have a quick question regarding the seat, how is the vinyl attached to the seat plate? It looks so great!!!
thanks
1976 cb400f

Offline D.WHO

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Re: Maduncle's brat style CB750F build project
« Reply #39 on: May 27, 2011, 05:18:29 PM »
Love those stacks! So do you just not have a filter or do you have a lil element that fits down in the stack? (BTW I'm gonna steal your awesome seat pan idea!  :-X )

maduncle

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Re: Maduncle's brat style CB750F build project
« Reply #40 on: May 28, 2011, 01:16:44 AM »
Yep - the shiny stacks show up the dirty engine, but then my plan is to ride this bike for a year or so, then pull the thing apart, repaint the frame and rebuild and clean and polish the engine.

The vinyl is held to the seat pan with what ever special glue it is that the upholsterer uses, seems pretty solid to me - no daggy loose bits anywhere.

maduncle

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Re: Maduncle's brat style CB750F build project
« Reply #41 on: June 01, 2011, 05:33:46 PM »
This post may get moved as it is more of a question to you all, than a report on the build progress but...

Having just seen this bike - http://www.pipeburn.com/home/2011/6/1/yamaha-xs-650.html

I now want to finish the pair of wire wheel I have sourced for my bike in satin black, rather than get them all polished up again.

The rear wheel is complete - with brake disc - and the front wheel is complete but minus the two six blot pattern discs. I have sourced one good disc so far off eBay but still chasing another.

My question is - what is the best way to get a quality satin black paint finish on the wire wheels? Do I take the brake discs off, plug the centre hole to stop paint getting inside, sand off any rust and pre -treat, and then get them powder coated?

Or is there some disassembly required before the wheel parts are painted? In other words - do the hubs, rims and spokes all need to be separate components to be painted?

Should I replace the bearings in these wheels whilst they are off?

And I guess I need to check the fit for these wheels, I don't know what kind of CB750 they came off, the rims are the right size and they are set up for disc brakes, but I am replacing Comstars on my bike so I am not sure if I need spacers.

Cheers,


Offline Flying J

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Re: Maduncle's brat style CB750F build project
« Reply #42 on: June 01, 2011, 05:41:48 PM »
To do it right, i would mock them up on the bike and make sure they fit. Theni would disassemble them and PC them, and replace all the bearings. You could take short cuts it just depends on the quality you want. I have heard of People PC the wheels while they are laced together but i would think that the finish chips and cracks around all the spoke holes due to movement

maduncle

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Re: Maduncle's brat style CB750F build project
« Reply #43 on: June 01, 2011, 08:38:07 PM »
To do it right, i would mock them up on the bike and make sure they fit. Theni would disassemble them and PC them, and replace all the bearings. You could take short cuts it just depends on the quality you want. I have heard of People PC the wheels while they are laced together but i would think that the finish chips and cracks around all the spoke holes due to movement

Thanks for that - I have been trawling through some of the older threads and I can see the need to separate the parts before powder coating them, particularly as the paint will crack it the spokes are ever adjusted.

So that will be my winter project - a strip down and rebuild of two wire wheels.

Offline hapakev

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Re: Maduncle's brat style CB750F build project
« Reply #44 on: June 02, 2011, 03:46:40 PM »
subscribed!  8)
Smoking Jack
1978 CB750F(ish)

"Keep moving forward, until you can no longer move" KP

maduncle

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Re: Maduncle's brat style CB750F build project
« Reply #45 on: June 11, 2011, 04:04:37 AM »
So...

The bike is almost finished, just waiting on the muffler from Lossa Engineering to arrive and then it can be tuned up and sent off for a roadworthy inspection. I can't wait to get it home and then get out on it.

Meanwhile I have been setting up my new work shed wit the intention of starting another bike. Today I bought this very heavy steel framed workbench on swivel wheels that has a vice fitted and a platform off one side for a bench grinder. This will be my engine building work station, once I clean it up.

Why would I need to build an engine when I have a bike almost finished I hear you say? Because I have caught the bug and I am now considering taking this bike on as my next project.



Here is what I know about the bike in the above photo.

1/. It is currently in America.
2/. It will be going into a container with a bunch of old cars and coming to Australia by September.
3/. I have first option on buying it.
4/. This is the only photo the guy I know who is bringing it over has of it.
5/. I think it is a Honda.

What I do not is:

1/. What model it is.
2/. What year it is.
3/. What condition it is in.

If someone can ID it from the photo that would be useful, at first glance from my untrained eye I think it is a CB350, but the head looks funny to me.

I promise photos of my finished bike soon.

Offline Flying J

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Re: Maduncle's brat style CB750F build project
« Reply #46 on: June 11, 2011, 08:47:34 AM »
Not a cb350, looks more like a cb450 or maybe a 500t. Just by looking at the front of the motor on that thing it looks more like this, cb450

It looks rough. I would expect to do a full rebuild on everything. What state in America is it coming from? That can tell you how much rust it may have. Those rims do not look stock. They look like aluminum shouldered rims. Why are those on there? Could be interesting, wish you had more info on it. Looking at the foot peg and brake pedal it defiantly looks like a 450. Front fender looks like it might be a off a cl450. Could be a fun project but i would not pay much for it.

Offline Syscrush

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Re: Maduncle's brat style CB750F build project
« Reply #47 on: June 11, 2011, 09:30:20 AM »
What I do not is:

1/. What model it is.
2/. What year it is.
3/. What condition it is in.
What I do not know is:

What is the appeal of buying a rusted-out basket case sight unseen from a world away?  From what I see of that bike, I wouldn't take it for free.
Life is precious: wear your f'n helmet!
There's nothing more expensive than a free bike...
FWIW, I'm not a shill for Race Tech - I've just got a thing for good suspension and the RTCE's are the most cost-effective mod for these old damping rod front ends.

Offline Flying J

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Re: Maduncle's brat style CB750F build project
« Reply #48 on: June 11, 2011, 09:40:06 AM »
Oh come on, any bike is worth taking for free. I got this one for free. Bullet holes in the tank and frame, no rear shocks, seat ect. It was laying on its side in the dirt for 10+ years with the oil cap off. And i found many usable parts that save me hundreds of dollars.

So for free id take it. If the motor turns freely you in the $50 price range. But honestly it much cheaper to pay a few hundred $$$ more to start with a more complete bike then to find the parts for a junker.
« Last Edit: June 11, 2011, 11:28:09 AM by ffjmoore »

Offline burmashave

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Re: Maduncle's brat style CB750F build project
« Reply #49 on: June 11, 2011, 09:48:41 AM »
Maduncle: Awesome! I love steampunk and am anxious to see how it all fits together and turns out.
Quote from: SOHC Digger, RIP
'Ere's whatcha do, Guvna', just throw a couple dookie logs in the hearth and bob's your uncle!
'77 CB750k