ILENGINE
Lawn Royalty
I agree with rivets in his short theory. If there isn't a wire going from one of the regulator mounting bolts on the plastic blower housing to one of the blower housing mounting bolts, or some other location to ground, or a silver bar like strap going between the regulator mounting bolt, and the cover bolt just below it. You will need to make a wire with two clamp on rings and install it to ground the regulator. if the regulator isn't grounded it will not charge the battery.