Yamaha 90a Owner's Manual

Also see for 60F: Service manual Owner's manual Owner's manual Owner's manual Owner's manual

Contents

Yamaha 90a Owner's Manual Manual pdf 69 page image

Maintenance63TIP:If the propeller nut does not align with thepropeller shaft hole after tightening to thespecified torque, tighten the nut further toalign it with the hole.EMU29289Changing gear oilWARNINGEWM00800● Be sure the outboard motor is securelyfastened to the transom or a stablestand. You could be severely injured ifthe outboard motor falls on you.● Never get under the lower unit while itis tilted, even when the tilt support leveror knob is locked. Severe injury couldoccur if the outboard motor accidental-ly falls.1. Tilt the outboard motor so that the gearoil drain screw is at the lowest point pos-sible.2. Place a suitable container under thegear case.3. Remove the gear oil drain screw andgasket. NOTICE: If there is an exces-sive quantity of metal particles on themagnetic gear oil drain screw, thiscan indicate lower unit problem. Con-sult your Yamaha dealer. [ECM01900]TIP:● If a magnetic gear oil drain screw isequipped, remove all metal particles fromthe screw before installing it.● Always use new gaskets. Do not reuse theremoved gaskets.4. Remove the oil level plug and gasket toallow the oil to drain completely.NOTICE: Check the used gear oil afterit has been drained. If the gear oil ismilky or contains water or a largeamount of metal particles, the gearcase may be damaged. Have aYamaha dealer check and repair theoutboard motor. [ECM00713]TIP:For disposal of used oil, consult yourYamaha dealer.5. Put the outboard motor in a vertical posi-tion. Using a flexible or pressurized fill-ing device, inject the gear oil into thegear oil drain screw hole.ZMU020631. Gear oil drain screw2. Oil level plugRecommended gear oil:Hypoid gear oil SAE#90Gear oil quantity:0.610 L (0.645 US qt, 0.537 Imp.qt)ZMU0313321