The Standard Magneto Stator Coil (Sparker Loop Set) generates the electrical signal needed to fire the CDI and produce spark on a 2-stroke motorized bicycle engine.

As the magneto magnet passes the stator coil, it creates the electrical pulse that is sent to the CDI, which then triggers the spark plug. A failing stator coil can cause weak spark or no spark at all.

This part is commonly replaced when repairing ignition problems or rebuilding the magneto system.