Maintenance53instead of cooling the engine, which cancause serious overheating. Be sure theconnector is tightened securely on the fit-ting after flushing the engine.NOTE: When flushing the engine with the boat inthe water, tilting up the outboard motor untilit is completely out of the water will achievebetter results. For cooling system flushing instructions,see page 49.EMU28450Cleaning the outboard motorAfter use, wash the exterior of the outboardmotor with fresh water. Flush the cooling sys-tem with fresh water.NOTE:For cooling system flushing instructions, seepage 49.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.EMU28486Periodic maintenanceWARNINGEWM01070Be sure to turn off the engine when youperform maintenance unless otherwisespecified. If you or the owner is not famil-iar with machine servicing, this workshould be done by your Yamaha dealer orother qualified mechanic.Maintenance, replacement, or repair of theemission control devices and systemsmay be performed by any marine enginerepair establishment or individual. All war-ranty repairs, however, including those tothe emission control system, must be per-formed by an authorized Yamaha marinedealership.A service manual is available for purchasethrough your Yamaha dealer for owners whohave the mechanical skills, tools, and otherequipment necessary to perform mainte-nance not covered by this owner’s manual.EMU28510Replacement partsIf replacement parts are necessary, use onlygenuine Yamaha parts or parts of the sametype and of equivalent strength and materials.Any part of inferior quality may malfunction,and the resulting loss of control could endan-ger the operator and passengers. Yamahagenuine parts and accessories are availablefrom your Yamaha dealer.ZMU02052