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Old 03-15-2013, 03:43 AM   #7124
Joined: Jan 2011
Location: You're Mama
Oddometer: 3,773
If the screw is on the cylinder side of the carb its a fuel screw . In would be leaner. If its on the airbox side its an air screw. Out would be leaner. 2strokes usually have air screws and 4strokes usually have fuel screws.
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