Follow this link, should tell you everything you want to know: http://www.factorypro.com/tech_tuning_procedures/tuning_float_height_adj_procedure.html
float height
My 1340 evo with 42 HRS Mikuni idles fast after it gets hot no matter how i adjust the idle air screw. What am i doing wrong??
either your float level is set too high or there is gunk between the float needle & seat inside the carb. open em up, set the float level to the proper specs. pull the needle & seat and clean & polish them. if the needle & seat are too far gone, order new ones and replace.
my quad runner 230 has a mikuni carb on it. the only model numbers on the carb are this 35B/10.
There is a small screw adjustment on the drivers side, closer to the bottom back part of the mikuni carb. Remove the air filter and housing to get at it better
Canned carb cleaner but you will need new gaskets and should get a book that way you can adjust the float(s), linkages, etc.
You can use either a single Mikuni VM 34 or VM 36 on the 850. The 750 uses only the 34.
It uses a Mikuni 38 mm carb with round slide. 43mm x 66 mm spigot and mouth.
The float is stuck in the OPEN position. Try sharply rapping on the float bowl several times with a non -metallic object. Screwdriver handles work great for this. I seriously doubt that the float went out of adjustment all by itself. Worst case scenario - take the float bowl off and spray carb cleaner around inside.
The OEM carb on a YZ465 is a 38MM Mikuni VM roundslide.
Bend the tab that contacts with the "needle". But DON'T put pressure on the needle when you do so. Carburetor rebuild instructions that come with the carb rebuild kit will tell you how to adjust everything and give optimum float level settings.
22mm is the float height for this carb