Kz750 carb overflowing

Maybe someone can help me I adjusted the carburetor float hight as specified in the manual. I start the bike with no problems but the carbs still overflow and not all of them the only one that doesn;t overflow is the only cylinder that doesnt get warm?/? 1 2 3 cylinders get hot no problem and the carbs keep overflowing can anyone shoot some wisdom over my way Thanks Guys

How did you set the floats ??Fuel service method or with a gauge..

using the clear tube and checking the hieght against the body of the carburetor

What did you set the height at?

i set them all within .016 of the top of the bowl

I believe it can only be one of 3 things (but I could be wrong). 1. The float tang height is actually set a bit lower than the other 3 carbs. Did you use the clear tube method? If you did and it still leaks see next 2 possibilities 2. The float valve is not seating properly. Remove the little float valve needle and clean it and its seat with carb cleaner or some other non-abrasive cleaner; replace if damaged. 3. The overflow tube in the carb bowl is cracked or lose. Check this while you have the carb bowl off to clean float valve. Ed

Should be 4mm below the top of the bowl.

szczupd, on my KZ650-B1 the Fuel Service Level is spec'ed at:

2.5 to 4 mm
or
0.0984 to 0.180 inches
or
0.01 to 0.18 inches (rounded to nearest 1/100th of an inch)
or
1/100 to 1.8/100th of an inch.
or
Measure against Float Bowl flange reference point (see below):



Best of success.
Bill

alright i cant figure this thing out all the carbs are at the right hight and the needles seat 1 and 2 still overflow and cylinder 4 doesnt get hot arghhhhhhh!!!

maybe the choke well in #4 is plugged up? i had this problem with mine waaaay back when i got it. took the carbs out 3 times to figure it out. maybe its time to remove and replace the inlet needles and seats

Floats sre too high, float needles are bad , Float feedles have trash in em 4 must have a clogged pilot .. Tha only way they will overflow is float needles leaking or float level too high..If you have the float levels right it shouldn't leak

szczupd wrote: "alright i cant figure this thing out all the carbs are at the right hight and the needles seat 1 and 2 still overflow and cylinder 4 doesnt get hot arghhhhhhh!!!"

I don't get it? There's nothing to "figure out." See my reply above, try what I suggest, and your carb won't overflow. Ed