Yamaha 15F Owner's Manual

Also see for 15F: Owner's manual Owner's manual Owner's manual Owner's manual Owner's manual

Maintenance39 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. Always completely reassemble the mo-tor before operation.EMU28512Replacement partsIf replacement parts are necessary, use onlygenuine Yamaha parts or parts of equivalentdesign and quality. Any part of inferior qualitymay malfunction, and the resulting loss ofcontrol could endanger the operator and pas-sengers. Yamaha genuine parts and acces-sories are available from your Yamaha dealer.EMU34152Severe operating conditionsSevere operating conditions involve one ormore of the following types of operation on aregular basis: Operating continuously at or near maxi-mum engine speed (rpm) for many hours Operating continuously at a low enginespeed (rpm) for many hours Operating without sufficient time for engineto warm up and cool down Frequent quick acceleration and decelera-tion Frequent shifting Frequently starting and stopping the en-gine(s) Operation that fluctuates often betweenlight and heavy cargo loadsOutboard motors operating under any ofthese above conditions require more fre-quent maintenance. Yamaha recommendsthat you do this service twice as often asspecified in the maintenance chart. For ex-ample, if a particular service should be doneat 50 hours, do it instead at 25 hours. This willhelp prevent more rapid deterioration of en-gine components.