2006 SD Johnson 4 Stroke 9.9-15HP Outboards Service Manual, Page 76Get this manual
ELECTRICAL ELECTRIC STARTER SYSTEM
ELECTRIC STARTER SYSTEM
Operation
The starting circuit includes the battery, starting motor, ignition switch (or starter button), neutral switchand related wiringThe starter motor magnetic switch coils are magnetized when the starter button is closedThe resulting plunger and pinion shift lever movement causes the pinion to engage the engine flywheel gear, the magnetic switch main contacts to close, and engine cranking to take placeWhen the engine starts, the pinion over-running clutch protects the armature from excessive speed until the starter button is opened, at which time the torsion spring causes the pinion to disengageTiller Models