Maintenance503. Remove the gear oil drain screw.NOTE:If the magnetic gear oil drain screwequipped: remove all metal particles fromthe screw before installing it.4. Remove the oil level plug to allow the oilto 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.NOTE:For disposal of used oil consult your Yamahadealer.5. With the outboard motor in a vertical po-sition, and using a flexible or pressur-ized filling device, inject the gear oil intothe gear oil drain screw hole.6. When the oil begins to flow out of the oillevel plug hole, insert and tighten the oillevel plug.7. Insert and tighten the gear oil drainscrew.EMU29302Cleaning fuel tankWARNINGEWM00920Gasoline is highly flammable, and its va-pors are flammable and explosive. If you have any question about properlydoing this procedure, consult yourYamaha dealer. Keep away from sparks, cigarettes,flames, or other sources of ignitionwhen cleaning the fuel tank. Remove the fuel tank from the boat be-fore cleaning it. Work only outdoors inan area with good ventilation. Wipe up any spilled fuel immediately. Reassemble the fuel tank carefully. Im-proper assembly can result in a fuelleak, which could result in a fire or ex-1. Gear oil drain screw2. Oil level plugZMU0313321Recommended gear oil:Hypoid gear oil SAE#90Gear oil quantity:610.0 cm3 (20.62 US oz) (21.51Imp.oz)ZMU03887
