How do marine stators work?

Marine stators for personal watercraft and outboard motors operate just like powersports stators used on motorcycle, ATV and SxS motors.  Marine stators consist of a metal core made of multiple steel sheets (called laminations) that are punched out in the necessary shape and riveted together.  The metal core is then insulated with molded plastic or a heat-cured coating, and many turns of wire wrapped around each pole of the core.  

The diameter and length of the wire is determined by the power output needs of that particular coil.  Some marine stators produce a low voltage and high current to be used for charging a battery. Other coils produce a high voltage and low current to be used for directly powering ignition systems.  

The power is produced by a magnetic flywheel mounted to the motor's crankshaft spinning at high speed around the stator, causing electrical current to flow in the wire windings.  This system provides an easy way to convert the rotation of the motor's crankshaft to electrical power without significant drag on the motor.