If the Mikuni carb is leaking gas out of the overflow despite the petcock being off, it usually indicates a stuck or damaged float needle valve. This valve controls the flow of fuel into the carburetor; if it doesn't seal properly, fuel can overflow. Additionally, debris in the fuel system or a malfunctioning float can also lead to improper fuel levels, causing leaks. It's essential to clean or replace the float needle and inspect the float for any issues.
float height
Yes it will fit, I have a 98 carb and my 86 model kx125
a mikuni vm30ss came stock on a 1980 Yamaha tt250,as i have one and am looking for parts for one.Alot of the parts for this carb and bike have been discontinued,so they are unavailible through Yamaha and are very hard to find anywhere..
my quad runner 230 has a mikuni carb on it. the only model numbers on the carb are this 35B/10.
Well, no. But its normal for the float in the carb to get get stuck and cause the gas to overflow through the overflow tube.
I have a 1982 Suzuki GS650L, and I learned the connection of the tubes the other day when I took the tank off to repaint it. There are three tubes that connect to the petcock, which is the valve on the bottom of the gas tank. When you are on the left hand side of the bike looking at the tank, you will see two places on the right hand side of the petcock. The gas hose connects to the connector on the petcock in the front, not the back. The other one is for the vacuum on the carbs. There are two distinctly different sizes of tube connectors on the petcock, and you will see a slight difference in the tubes coming to the petcock. The gas hose goes from the petcock in between carbs two and three (the very middle) and connects to a valve on the carb. You will see a gold looking nub that you have to connect the tube to.
for a 2 stroke Yamaha, i believe they have a mikuni carb, found on many makes and models. ask your local motorcycle scrap yard if they can locate one for you, as they may be able to find you a used one for a price that would not exceed the value of the bike. it might need a carb job too.
You can use either a single Mikuni VM 34 or VM 36 on the 850. The 750 uses only the 34.
Float may be stuck in carburetor, or you may need to turn the petcock to the off position when not riding (if applicable). ~RC@HD~ ANSWER: Another posibility is that the gas cap is not venting correctly and when the bike sits in the sun, presure builds up in the tank forcing gas out of the overflow vent in the carb.
It uses a Mikuni 38 mm carb with round slide. 43mm x 66 mm spigot and mouth.
The OEM carb on a YZ465 is a 38MM Mikuni VM roundslide.
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.