I'm in Florida so no expert on the subject but the basics are to remove all water from the engine, fill the tank completely and add some fuel stabilizer, fogg the engine via spraying some fogginng oil into the cylinders with spark plugs removed.. lastly is remove the battery and store in a warmer place.. ie don't let the batt remain in sub-freezing temps for to long... I think those are the basics of winterizing... I'm sure one of the experts from the great white north will chime in with official step by step!