Which of the following is recommended as part of the annual maintenance program for a gasoline-powered boat?

Drain and check bilge along with topping off the anti-freeze level
Examination of thru-hull fittings for signs of leakage or corrosion
Change the spark plugs with automotive plugs and check spark distance
Calibration and re-installation of an automotive-type fuel pump

1 answer

Examination of thru-hull fittings for signs of leakage or corrosion