Lubricate all grease fittings. Normally, there are grease fittings located on the steering arm, shift and throttle linkages and outdrive pivot points. Be sure to lubricate all of these points according to manufacturer recommendations. Check the cooling system. Depending on the vessel and engine configuration this can be a simple or complex operation.
Many dealers drain the engine block and risers prior to storage.
They may also drain the heat exchanger and all hoses in the cooling system. Make certain all drain plugs are reinstalled in the engine block and risers. Be sure all cooling system hoses are connected and that the connections are tight. Engines equipped with a closed cooling system still need the raw-water side of the system drained and protected. Dealers often run the engine in an anti-freeze solution while preparing the engine for its oil change.