[TitanBlue]

Nice variety of answers. Steam is no longer recommended for any engines, as the steam will get inside electrical connections and form condensation which is trapped inside and forms corrosion. Cold water is best, or cold pressurized water, if kept away from certain areas. Remember that the starter islocated under the Intake cover, and on person ruined their starter, by cleaning the engine and getting the muddy water in the starter. Simple Green is an excellent cleaner. You can wipe the engine parts dry and use armour all to finish it off, sense it has so much plastic. A warm, not hot, engine is OK to aid in the cleaning action.