Topic: 1970 CB750 K0 Tracy in my shop

[MoMo]

Thanks 754, where would one buy brass shim stock?  Larry

[754]

Auto-parts places might have.. Machine shop/ industrial supply should have. Bolt supply places. McMaster-Carr
 It comes in  a small roll, more than you will ever use..in thickness from 1 to around 30 or 40 thou.

Can get stainless,copper,  and steel too.

 Sheet I think.. maybe foot x a foot or sandpaper size.

 Or if a member has some, they can mail a pce .. a few aquare inches. I think a sheet would do the whole forum, just got to get close on thickness

[ekpent]

If one is bad really check the rest close,dunk,soak and shake and check---Just sayin' 

[Ichiban 4]

Thanks 754, where would one buy brass shim stock?  Larry

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Larry..

It's not that hard to repair those holes in your floats..have done it many times before in similar situations w/ model airplane gas tanks..as well as brass floats.

You can get the shim stock that 754 was suggesting..@ hobby /model shops.  Some hardware stores also carry it in their small metal stock depts.  The stock needn't be thick..in fact the thinner the better.  Could actually be a foil of say .001" thick.

The two main things to keep in mind when soldering (lead-tin preferably..NOT silver solder..too high a melting point) are to: 1.)clean the areas thoroughly..by scraping or sanding 2.) PRE-TIN both the area around the hole..and the piece of brass shim stock.  After that..the repair itself is mainly a matter of heating the two pieces..until they fuse.  Very little..if any..additional solder is usually required to affect a tight repair.

Of course..for every hole you have..it will require the same procedure repeated separately.  I'd also suggest using a soldering gun..rather than an iron..or certainly any sort of open flame..as you have much more heat control with the gun.

If you feel you need a little practice before tackling the actual float(s)..I'd suggest trying it on the bottom of a tin (not aluminum) can.  That way..you can get more of a feel for the right amount of pre-solder/tinning needed..and the right amount of heat needed to make the two pieces fuse together.  Bet you'll become an old pro @ it in no time!

Ichi

[MoMo]

Owner got a float off FEEBay so all is well- 14$ I think is what he paid.   I did find shim stock but did not spend the time trying to repair as the cost would have to go to the owner.  Wiring is complete along with a new headlight setup, which was put together from parts in my shop. Shell from a CB550 and fork ears from a Yamaha TX500, looks  better than the old, hideous chrome light.


New throttle cables, some turn signals, modern fuse holder wired in, tune and service.  Started right up and sounds awesome, that Triple A exhaust is sweet.. Cannot test ride due to snow. Hope to complete soon so I can start on my Czech duo..Larry

[MoMo]

Should have posted before/after photos of the h/l and wiring,  so here goes....Larry

[MoMo]

Bike is finished and back to the owner.  It took me about 15 hours to rebuild the carbs, install new left switch, repair the wiring, install and modify Yamaha  fork ears and a CB550 h/ shell, new throttle cable,  tune and service.. I charged 420 plus parts.  Any thoughts on that?   friends tell me I should charge more.  Here are photos of the finished bike...Larry

Now I can bring the CZ in and have a bike for the snow!!!

[754]

 I think 5-600 would be fair..

 That pipe sure makes the bike look good, man I want one of those..

[Zaipai]

Well 420 / 15 hours is around $28/hour. What would a shop cost him for that much time? Still you should charge what ever makes you comfortable. That is what I do. I also find out the more you charge, the more they expect from you later on in terms of support.

Looks good. I am not a big fan of the exhaust, however they seem to be pretty sought after and I am not sure why. However on that bike they do look good.

Nice work!

.: Scott :.

[MCRider]

That pipe... sigh. When I had mine it was THE thing, everyone wanted to see. It came out during a brief performance craze about "equal length headers" all the hot rods had them, but this one was most radical.  Just a brief window when they were sold.

It came to be known EL not such a big deal for performance, but man...that pipe...

muy buenos recuerdos

[MoMo]

thanks for some of the input regarding charges.  Shop would have cost way over a grand if there was anyone experienced enough to work on the vintage bikes. Owner has brought me quite a few bikes over the past couple years but I had a feeling I under priced myself with this one...Larry

[MCRider]

thanks for some of the input regarding charges.  Shop would have cost way over a grand if there was anyone experienced enough to work on the vintage bikes. Owner has brought me quite a few bikes over the past couple years but I had a feeling I under priced myself with this one...Larry

Tough call. If it had been a 2006 crotch rocket, probably could've got 600+. being what it is, you go back in time with the bike and the fees. Fair? Isn't that what you pay the bus driver?

Nice job though.