Most of GY6 50cc engine: 49cc, 50cc, 60cc, 72cc scooters, mopeds, ATV's, go karts with 139QMB GY6 engine. Will work on most of the 50cc Chinese GY6 4-stroke engines 139QMB. This Chinese starter motor is a very popular starter and fits the Honda copy GY6 design Chinese engine.
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