What is the most precise method for adjusting the air-fuel mixture on a motorcycle?
1 Answers
First, gently turn the mixture screw clockwise all the way in, then turn it counterclockwise one and a half turns - this should approximately reach the proper mixture position. For more precise adjustment, first adjust the idle speed to around 1000 rpm, then make fine left-right adjustments to the mixture screw. During adjustment, the idle speed will increase or decrease - keep adjusting until you find the position where the idle speed reaches its highest point.