A fixing nut of the starting pedal could become loose while driving, resulting in the engine cutting out. Moreover, a screw could become loose in the air filter, which could become trapped in the throttle valve, blocking acceleration so that the motorcycle cannot reduce speed. In some units of the product the fuel hose connector is not properly connected, which could cause a fuel leak.

The clutch pressure plate bearing may break when the clutch is operated frequently due to insufficient load rating of the bearing. As a consequence, the clutch may fail to operate and the transmission will not shift properly. There is a possibility that engine oil pressure may not regulate properly due to an improper design of the oil relief valve in the oil pump. As a consequence, the resin gear may break which could result in engine damage due to lack of oil supply.