For our friends out east we’ve got a spring boat dewinterization check list.
1. Put the drain plug in the stern of the boat, remove any covers on the outdrive.
2. Charge or replace the battery, check the impeller water pump on the outdrive, replace if necessary.
3 Check the oil, it should be new oil form the winterization process.
4. Fuel the boat.
5. tow boat and trailer to water, launch the boat, start the engine, check the oil pressure, water temp, if everything is satisfactory, have a good day, if not pull the boat out and repair or address the issue.