Yamaha F8F Owner's Manual

Also see for F6D: Ower's manual

Operation33EMU36382First-time operationEMU36393Fill engine oilThe engine is shipped from the factory with-out engine oil. If your dealer did not fill the oil,you must fill it before starting the engine.NOTICE: Check that the engine is filledwith oil before first-time operation to avoidsevere engine damage. [ECM01782]The engine is shipped with the following tag,which should be removed after engine oil isfilled for the first time. For more informationon checking the engine oil level, see page 35.EMU30175Breaking in engineYour new engine requires a period of break-in to allow mating surfaces of moving parts towear in evenly. Correct break-in will help en-sure proper performance and longer enginelife. NOTICE: Failure to follow the break-inprocedure could result in reduced enginelife or even severe engine damage. [ECM00802]EMU27086Procedure for 4-stroke modelsYour new engine requires a period of 10hours break-in to allow mating surfaces ofmoving parts to wear in evenly.TIP:Run the engine in the water, under load (ingear with a propeller installed) as follows. For10 hours for breaking in engine avoid extend-ed idling, rough water and crowded areas.(1) For the first hour of operation:Run the engine at varying speeds up to2000 r/min or approximately half throttle.(2) For the second hour of operation:Increase engine speed as much as nec-essary to put the boat on plane (butavoid full-throttle operation), then backoff on the throttle while keeping the boatat a planing speed.(3) Remaining 8 hours:Run the engine at any speed. However,avoid operating at full throttle for morethan 5 minutes at a time.(4) After the first 10 hours:Operate the engine normally.EMU36402Getting to know your boatAll boats have unique handling characteris-tics. Operate cautiously while you learn howyour boat handles under different conditionsand various trim angles (see page 49).ZMU01710