Repair if necessary. The raw water pump impeller should be changed every 2 years or if the water temperature gauge reads higher than normal. Change spark plugs and have the timing checked. Check the gear case oil. Change it if it was not done during winterization.
Grease splines on the propeller shaft with appropriate marine grease.
Clean if necessary. Inspect all life preservers, flare kits, fire extinguishers, and first aid kits. Replace or repair as necessary. Replace your safety flares if they out-dated. Connect electronics and test for operation.