I have my bike all apart right now waiting for the motor to get back from Craycraft. My question is, is it possible to set float levels while the carbs are off of the bike? If so, how! I need some help bad, so any info you guys can give me is cool.
Me too. It shows you exactley where the fuel is, not where the floats are.
When you get your motor back, and it needs race fuel, it will be a different specific gravity than what your old pump gas is. This will/can cause the floats to "float" at a different height in the bowls. If you measure the float height with a tape measure and set it to Yamaha specs the actual fuel level can be wrong. The fuel level is what you are trying to adjust by moving the floats, not the actual height of the floats.
If you use the clear tube method make sure you use the type of fuel that you will be running with your new motor.
Thanks for the heads up. I did it by measuring it last night then hooked up my gas tank and the level was perfect but it sounds like I will have to do it again with race gas. What kind of problems would fuel level too high cause? Would it push fuel past the seat adn needle to cause a rich condition? Yamaha says 13 mm but I was at about 7mm!
Well, fuel was leaking out of the drain tubes and it was too rich going up steep hills like sand mountain, but that was under full throttle.
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