Reply To: Mercury 50hp belt replacement

[fastjohn]

First, why are you replacing the belt?  These belts normally do not wear out.  Many old 4-cylinders are still using the original belt.  As for changing the belt, after removing the cover on the magneto drive pulley, the belt can be pried off the pulley without removing the pulley.   Of course the flywheel must be removed using the correct three arm puller–the type that uses bolts screwed into the flywheel, not the kind that uses jaws on the outer edge of the flywheel.  Follow labrador-guy’s advice on the timing marks.