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If possible, don't let it stay in the same rotation position all winter long. If it's a pull cord motor. give it a pull every few weeks. If it's electric start, leave the battery in place so that you can do the same. The water pump vanes will last longer if they are not crushed in position for long periods of time. Cylinders, pistons, reeds and rings will be less likely to corrode if they are rotated. Some might consider it "overkill" but I do not.