Mercury Optimax Models 135, 150, Direct Fuel Injection., Page 79Get this manual
CHARGINGSTARTING SYSTEM
5Hold flywheel tool with wrench while tightening bolt down on protector capTighten bolt until flywheel comes free
aFlywheel Puller (91-73687A2)
NOTE: Neither heat or hammer should be used on flywheel to aid in removal as damage to flywheel or electrical components under flywheel may result6Remove flywheelInspect flywheel for cracks or damage
Installation