Maintenance63EMU31910Changing 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 it istilted, even when the tilt support lever orknob is locked. Severe injury could oc-cur if the outboard motor accidentallyfalls.1. Tilt the outboard motor so that the gear oildrain screw is at the lowest point possi-ble.2. Place a suitable container under the gearcase.3. Remove the cooling water inlet covers onboth sides of the gear case. Be carefulnot to lose the bolt and nut.4. Remove the gear oil drain screw and gas-ket.NOTE: 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.5. Remove the oil level plug and gasket toallow the oil to drain completely.CAUTION:ECM00710Inspect the used oil after it has beendrained. If the oil is milky, water is gettinginto the gear case which can cause geardamage. Consult a Yamaha dealer for re-pair of the lower unit seals.1. Gear oil drain screw2. Oil level plug3. Gasket
