Here's what to do when hauling out and launching. Always follow the instruction book for your engine.
Autumn
Change the engine oil and oil filterStandard sump. With shallow sump (optional), every 150 hours. · every 250 hours or annually
Clean the heat exchanger tube stack and replace the O-ringsevery 250 hours or annually
Replace the air filterevery 750 hours
Replace the fuel filterevery 750 hours
Replace the coolant/glycolevery 750 hours
Winterise the raw water systemLet the engine draw in antifreeze until it comes out of the exhaust, or drain the system as described in the owner's manual.
Remove the impeller and store it dry
Check anodes, belts and hoses
Spring
Check the air filterevery 250 hours or annually
Check the raw water pump impeller and replace it if wornevery 250 hours or annually
Check the zinc anode in the heat exchangerMay need to be done every six months. · every 250 hours or annually
Check belts, hoses, oil level and coolant
Check through-hulls, seacocks and hose clamps
Charge and connect the batteries, clean the terminals
After launching, check that nothing is leakingStart the engine and check that cooling water flows out evenly.