Operation throttle to 3000 r/min or less. 3. Second hour: 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. Third through tenth hours: Avoid operating at full throttle for more than 5 minutes at a time. Let the engine cool between full-throttle runs. Vary en- gine speed occasionally. 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. are tight (if equipped Yamaha fuel tank or boat tank). 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). 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. EMU27101 Preoperation checks EMU27140 Engine EWM00080 WARNING G Check the engine and engine mounting. 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. G Look for loose or damaged fasteners. 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. EWM00090 EMU27110 Fuel G Do not touch or remove electrical parts when starting or during operation. WARNING G Check to be sure you have plenty of fuel for your trip. 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 26