Maintenance3911. Drain the cooling water completely out ofthe motor. Clean the body thoroughly.12. If the “Fogging Oil” is not available, re-move the spark plug(s). Pour a teaspoon-ful of clean engine oil into each cylinder.Crank several times manually. Replacethe spark plug(s).13. Drain the fuel from the fuel tank.TIP:Store the fuel tank in a dry, well-ventilatedplace, not in direct sunlight.EMU28402Lubrication1. Install the spark plug(s) and torque toproper specification. For information onspark plug installation, see page 44.2. Change the gear oil. For instructions, seepage 47. Inspect the oil for the presenceof water that indicates a leaky seal. Sealreplacement should be performed by anauthorized Yamaha dealer prior to use.3. Grease all grease fittings. For further de-tails, see page 43.TIP:For long-term storage, fogging the enginewith oil is recommended. Contact yourYamaha dealer for information about foggingoil and procedures for your engine.EMU28450Cleaning the outboard motorAfter use, wash the exterior of the outboardmotor with fresh water. Flush the cooling sys-tem with fresh water.TIP:For cooling system flushing instructions, seepage 37.EMU28460Checking painted surface of motorCheck the motor for scratches, nicks, or flak-ing paint. Areas with damaged paint are morelikely to corrode. If necessary, clean and paintthe areas. A touch-up paint is available fromyour Yamaha dealer.EMU37091Periodic maintenanceWARNINGEWM01981These procedures require mechanicalskills, tools, and supplies. If you do nothave the proper skills, tools, or supplies toperform a maintenance procedure, have aYamaha dealer or other qualified mechan-ic do the work.The procedures involve disassemblingthe motor and exposing dangerous parts.To reduce the risk of injury from moving,hot, or electrical parts: Turn off the engine and keep engineshut-off cord (lanyard) with you whenyou perform maintenance unless other-wise specified. Allow the engine to cool before handlinghot parts or fluids.