On mine I just took the pull start off and put a bead of silicone all along the mating surface and a dab in the drain hole in the bottom of the motor. Then just put it back on and pull the rope out a little and put a thick bead around the rope hole, then push it bak in to seal good. Then fill the end of the handle with it so no water can seep in. Works good and youll still have the P.S. just in case you need it.