The starter Bendix drive for Viper 125-200 cc motorcycles and similar (China, Minsk) is an assembly with a one-way clutch that engages the starter gear with the engine and disengages them after the engine starts.
If the starter spins but the engine does not turn over, or you hear grinding and slipping, it is time to replace the Bendix drive. Also check the condition of the ring gear teeth.
- Compare the number and position of the contacts with your connector.
- Make sure the ground wire is securely connected to the frame.
