The kick starter driver is the counterpart to the kick starter pinion. It sits on the crankshaft in front of the variator and its teeth wear over time. This leads to kick starter problem and should be replaced quickly if there are problems with it. Fits CPI, Keeway, Generic, MaWi and all Chinese made 2-stroke scooters with Minarelli based (1E40QMB) engine.AI-translation