The 1982 Suzuki GSX400F signal generator is mounted on the right hand side of the engine in the area commonly used for contact breaker point. It is comprised of a magnet embedded rotor attached to a mechanical advance mechanism and two pick-up coils, with iron plates at their bases, affixed to a plate. Each pick-up coil consists of a coil of wire and a yoke or coil and is mounted, 180 degree apart on the plate. As the rotor magnet is turned past the coils, AC current is produced and used for switching within the transistor unit. The transistor unit controls power to the ignition coils and causes the spark plugs to fire at the proper time.
The following schematic shows the Suzuki GSX400F’82 Signal Generator Circuit Diagram: