KZ750b carb fuel bowl replacements or total new c

carbs leaking fuel..mechanic said i need to find new/rebuilt if possible since these are worn out from age issues.

anybody have any contacts since these are tough to find? Im located in St Louis MO USA

They are leaking out of the float bowl? Or the overflow? Are any gaskets torn? Might be worth checking the tightness of the screws, and that the float needle is free, clean, and in good shape.

Z1 Enterprises has the whole rebulid kit here for $24 each carb. Has gaskets, needle and seat, which could cause leaking from either spot, plus all jets.
www.z1enterprises.com/carburetor-kit-kz7...inder-1976-1979.html

You need a new mechanic.

Unless there is major physical damage to the carbs they should be able to be rebuilt. I strongly advise against purchasing aftermarket carb kits though. Simply clean the carbs with carb dip and replace the soft parts like gaskets and O-rings.

If this is beyond your capability there are guys around that do that sort of work for reasonable prices. PM me if you need a contact. I could even do them, again, assuming there is no serious physical damage to the carbs.

How about posting up some photos of the carbs and a better explanation why your mechanic doesn't do the work himself?

seems the bike sat for about 7 years then I got it out and over a winter about 4 years ago went thru replacing tires, exhaust cleaned the tank and had the carbs reset. Bike ran great for about 5 months with normal fixes along the way. Now it seems there is a fuel bowl leak and just poor running condition.
if I had someone go thru them completely and replace what might be needed if would feel better for sure...last mechanic didn't have what I would call the expertise for a vintage bike and didn't want to do the search for the parts.
so if anyone can recommend someone that is really good at the old stuff I would appreciate it. Even though its not my daily rider I love this bike!

here she is! trying to keep her as stock as possible

My dad about freaked when I removed the "Purple Rain" crap he put on it lol...I brought back to respectability and went back to stock seat too.

I recommend that you do it yourself. I'm going through fixing my carb now after paying a shop 400 plus I bought the gasket kits myself. Now I need to do it anyway, He screwed it all up and it leaked all over, carbs out of order, all sorts of errors. Save the money and be sure it is done right. I agree with previous post- unless it's broken somewhere, you can rebuild it.

That is exactly what I want to avoid...someone that isn't comfortable doing it inst the right one to try.

Was hoping someone here had a reliable candidate? Success stories are great

...last mechanic didn't have what I would call the expertise for a vintage bike and didn't want to do the search for the parts.

This is why you should do the work yourself. Cleaning carburetors & replacing gaskets is not that hard. I'd never done carb work before, but it was easy & I do mean easy. most stuff only goes back together one way & each carb is virtually the same as the other, so it's kinda hard to mess up. My bike is a 4-cyl, so doing a Twin should be extra easy. If the airbox ducts are hard, that could be the first problem to deal with, especially if they are NLA.

Visit the carb diagram at Partzilla for your bike and identify all of the gaskets, o-rings & rubber parts, then see what's are available at Z1Enterprises.com or etc. Sign in at partzilla: if they show a photo of a part, then they or the Kawasaki dealer or Z1Ent should have it. or can get it.

I think my apprehension lies more in the dialing in after I rebuild more than anything? never done that stage. I have rebuilt old car carbs before so I get the concept if you have the correct kit.
setting it correctly after the install I guess Is what I need to read up on. I have been reading more forums in here on this and seems they use clear fuel lines to measure volume and pressure?

Mikuni BS38 on a 1979 KZ750 twin - looks like parts are much more available than I originally thought....however, I want strictly OEM parts.

Thanks guys! Im going to do this myself and learn from it. ANY TIPS are appreciated. I have access to an ionize cleaner so all I need are the correct parts and time to get everything set correctly.

Get a genuine Kawasaki factory service manual. The clear tube method does not measure volume or pressure, it indicates fuel level.

Good screwdrivers. JIS for the cross-slot screws (they are not Phillips) and proper hollow ground flat blades that snugly fit the slots in the jets.

A carburetor synchronizing setup. The Morgan Carbtune seems to be highly favored these days, though a high quality set of vacuum guages designed for this purpose will also get the job done.

A bucket of carb cleaner with a small parts basket. I am partial to Berryman's Chemtool.

A genuine Kawasaki Factory Service manual for the exact year and model bike you have.

P. S. It is highly unlikely that any metal parts will need to be replaces, except perhaps the needle and seat valves. Gaskets and orings are usually the only things replaced. Be very careful with the diaphragms in the tops of the carbs that raise and lower the slides that hold the jet needles. They are easy to tear and puncture and are sometimes hard to find and always expensive.