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Carb kit

mjc

CB750 Member
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Lhc AZ.
I have a cb750 k3. I took carbs off and cleaned them then checked the vacuum which was ok. I ended up with a float that now leaks a little bit so I want to do it more correct. Where is everybody getting kits from, Ebay, 4into1 or what other?
 
Assuming you mean the float valve is leaking try to give the needle a thorough clean and you might find it seals, I find fine scotchbrite usually does the trick, original brass parts are generally better quality than the aftermarket items, same goes for the jets, they don't wear out so as long as they're clear they'll pretty much last for the life of the bike.

Loki
 
Use oem parts if possible, you can still find honda parts sometimes but you gotta look around. I have used some parts from 4 into 1 and its better then some of the crap on ebay and amazon. New jets get from jets r us they have oe and aftermarket and both are good.
 
My jets actually look like they are some kind of plastic, definitely not brass like I expected. I know I want I want float bowl gaskets at a minimum that is why I started looking at full kits. I am going to go pick up a Joker Machine float gauge tomorrow to help adjust.
 
Send some pics because there are no plastic jets.
I took a razor blade and shaved some off. It seems to be some kind of plastic.
20251031_135346.jpg
 
Precision moulded Nylon IIRC.
I can remember fitting Nylon main jets to my GT750 Suzuki around 1980 maybe, so it's not exactly new technology.
IIRC the main advantage was that the metering hole was moulded that size, not drilled, so no issues with drills/reamers wearing down in size allegedly.
 
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