Starter freewheel for Vespa 50 cc 4-stroke models
The starter freewheel forms the connection between the starter motor and the crankshaft. The freewheel secures the components when the engine starts to run and the engine speed exceeds the starter motor speed.
Creaking and cracking noises during the starting process often indicate a defect in this component. Inaction here can lead to a complete defect in the engine housing.