Magneto stator for Viper 125-200 cc motorcycles and similar (China, Minsk). The stator is the stationary part of the generator with the windings. The rotor spinning around it induces current in the windings, which powers the electrical system and charges the battery.
Replace it if the windings have burned out or have an inter-turn short, the varnish has darkened, charging is weak and the spark disappears. The stator is checked with a multimeter.
