How do I prepare my snow blower for off-season storage?
Remove all fuel from the tank by running the engine until it stops, change the engine oil, and pour approximately 1 oz. (30 ml) of clean engine oil into the cylinder via the spark plug hole, pulling the recoil starter several times to distribute it. Store the unit in a clean, dry, well-ventilated area away from any appliance with an open flame or pilot light, and if storing in an unventilated area, rustproof the metal parts with a light oil or silicone coating. (Pages 16)
From the official Craftsman Snow Blower FAQs manual, page 16
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