Yamaha F2.5A Owner's Manual

Also see for F25A: Service manual Owner's manual Service manual Service manual Owner's manual

Contents

Maintenance74TIP:If a torque-wrench is not available when youare reinstalling a spark plug, a good estimateof the correct torque is 1/12 turn past finger-tight. When you are installing a new sparkplug, a good estimate of the correct torque is1/2 to 2/3 turn past finger-tight.EMU42464Checking fuel filterF2.5AFor cleaning or replacement of the fuel filtersat the intervals specified in the periodic main-tenance chart, consult a Yamaha dealer.F4B, F5A, F6CThe fuel filters are located in the filler hole ofthe built-in fuel tank and in the bottom cowl-ing. Check the fuel filters periodically. If for-eign material is found in the filters, clean orreplace them. For cleaning or replacement ofthe fuel filters, consult a Yamaha dealer.EMU40141Inspecting idle speedNOTICEECM02231When checking the engine idle speed,make sure to supply water to the coolingwater passages by placing the outboardmotor in the water or by using a flushingattachment or test tank.To check the engine idle speed, a diagnostictachometer is required. For checking or ad-justment of the engine idle speed, consult aYamaha dealer.EMU42913Changing engine oilF2.5AChange the engine oil several minutes afterthe engine has been stopped, so that the oilis still warm, but not hot.WARNINGEWM01951Be sure the outboard motor is securelyfastened to the transom or a stable stand.NOTICEECM01711Change the engine oil after the first 20hours of operation or 3 months, and every100 hours or at 1-year intervals thereafter.Otherwise the engine will wear quickly.1. Put the outboard motor in an upright po-sition (not tilted). NOTICE: If the out-board motor is not level, the oil levelindicated on the oil dipstick may notbe accurate. [ECM01862]Spark plug torque:F2.5AMH 25 Nm (2.55 kgf-m,18.4 ft-lb)F4BMH 13 Nm (1.33 kgf-m, 9.6 ft-lb)F5AMH 13 Nm (1.33 kgf-m, 9.6 ft-lb)F6CMH 13 Nm (1.33 kgf-m, 9.6 ft-lb)1. Fuel filterZMU0676511