Operation throttle to 3000 r/min or less. 3. Next two hours: Accelerate at full throttle onto plane, then reduce engine speed to three-quar- ter throttle (approximately 4000 r/min). Vary engine speed occasionally. Run at full throttle for one minute, then allow about 10 minutes of operation at three- quarter throttle or less to let the engine cool. 4. Remaining seven hours: Run the engine at any speed. However, avoid operating at full throttle for more than 5 minutes at a time. 5. After the first 10 hours: Operate the engine normally. Use only straight gasoline in the fuel tank. The Yamaha oil injection system provides proper lubrication for normal operation.
G Be sure the fuel tank is positioned on a se- cure, flat surface, and that the fuel line is not twisted or flattened, or likely to contact sharp objects (if equipped Yamaha fuel tank or boat tank). boat tank). EMU27120 Oil G Check to be sure you have plenty of oil for your trip. EMU27130 Controls G Check throttle, shift, and steering for prop- er operation before starting the engine. G The controls should work smoothly, with- out binding or unusual free play. G Look for loose or damaged connections. G Check operation of the starter and stop switches when the outboard motor is in the water. EMU27102 EWM00080 Preoperation checks EMU27140 Engine WARNING G Check the engine and engine mounting.
G Look for loose or damaged fasteners. If any item in the preoperation check is not working properly, have it inspected and repaired before operating the out- board motor. Otherwise an accident could occur. G Check the propeller for damage. EMU27170 Operation after a long period of storage When operating the engine after a long peri- od (12 months) of storage, proceed as fol- lows: 1. Use a 50:1 gasoline-oil mixture to start the engine. 2. Start the engine. Leave it idling. ECM00120 CAUTION: Do not start the engine out of water. Over- heating and serious engine damage can occur. EMU27111 Fuel EWM00090 WARNING G Check to be sure you have plenty of fuel for your trip.
G Do not touch or remove electrical parts when starting or during operation. G Make sure there are no fuel leaks or gaso- line fumes. G Keep hands, hair, and clothes away from the flywheel and other rotating parts while the engine is running. G Check fuel line connections to be sure they are tight (if equipped Yamaha fuel tank or 3. Watch for oil flowing through the oil feed 26