Replace a worn or damaged kickstart idle gear with this OEM GY6 Kickstart Idle (Reduction) Gear. The two-piece assembly consists of a large outer spur gear (37 teeth, lightened with oval cutouts) and a small inner helical pinion gear at the center hub. This intermediate gear sits between the kickstart shaft and crankshaft gear to transmit kick-start force to the engine. Fits GY6 125/150cc horizontal 4-stroke engines equipped with a kick start.
Fits GY6-based 125/150cc engines with kick start, including the following engine codes: 157QMJ, 152QMI, YN1P57QMJ, 1P52FMI, 154FMI, JJ157QMJ, 1P57QMJ, BN157QMJ, and other QMJ/QMI variants.
