Back out the idle adjustment screw, on the bottom left side of the carb. (it's a spring loaded screw) Otherwise, check your throttle cable and adjust that down too. It took me like 6-7 times last night to get everything adjusted perfectly.Schimmel03 said:Ok, so I just finished boring out my carb to 9/16. But, now when I start it up it has a really high idle. Can anyone tell me how to fix this?