The Hall sensor for Viper 125-200 cc motorcycles and similar (China, Minsk) is a contactless sensor that detects the position of a rotating part and sends a signal to the ignition unit.
When it fails, the spark disappears and the engine does not start or stalls. Before replacing it, check the wiring and the connector.
- Disconnect the battery before replacement.
- Check the condition of the connectors and wiring: very often they are the cause.
