User manual YAMAHA 300 3.3L HPDI-2005

[. . . ] Z250D LZ250D Z300D LZ300D OWNER'S MANUAL U. S. A. Edition LIT-18626-06-09 6D0-28199-12 EMU25071 ZMU01690 Read this owner's manual carefully before operating your outboard motor. Important manual information EMU25100 To the owner Thank you for choosing a Yamaha outboard motor. This Owner's Manual contains information needed for proper operation, maintenance and care. A thorough understanding of these simple instructions will help you obtain maximum enjoyment from your new Yamaha. If you have any question about the operation or maintenance of your outboard motor, please consult a Yamaha dealer. [. . . ] Correct break-in will help ensure proper performance and longer engine life. ECM00750 Mounting height (boat bottom) To run your boat at optimum efficiency, the water resistance (drag) of the boat and outboard motor must be made as little as possible. The mounting height of the outboard motor greatly affects the water resistance. If the mounting height is too high, cavitation tends to occur, thus reducing the propulsion; and if the propeller tips cut the air, the engine speed will rise abnormally and cause the engine to overheat. If the mounting height is too low, the water resistance will increase and thereby reduce engine efficiency. Mount the outboard motor so that the anti-cavitation plate is in alignment with the bottom of the boat. CAUTION: G G G Failure to follow the break-in procedure could result in reduced engine life or even severe engine damage. Do not use premixed fuel in this engine because it could cause carbon deposits on the fuel injector and engine trouble. Follow the instructions for break-in carefully. NOTE: Leave the label pictured below on the top cowling until the break-in procedure has been completed. It may be removed afterwards. ZMU01762 NOTE: G The optimum mounting height of the out- 30 Operation 4. quarter throttle or less to let the engine cool. 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. After the first 10 hours: Operate the engine normally. 5. EMU27101 Preoperation checks EWM00080 WARNING If any item in the preoperation check is not working properly, have it inspected and repaired before operating the outboard motor. Otherwise an accident could occur. ECM00120 ZMU01945 EMU27090 CAUTION: Do not start the engine out of water. Overheating and serious engine damage can occur. EMU27110 Procedure for HPDI models Run the engine under load (in gear with a propeller installed) as follows. First 10 minutes: Run the engine at the lowest possible speed. Next 50 minutes: Do not exceed half throttle (approximately 3000 r/min). If you have an easy-planing boat, accelerate at full throttle onto plane, then immediately reduce the throttle to 3000 r/min or less. Second hour: Accelerate at full throttle onto plane, then reduce engine speed to three-quarter throttle (approximately 4000 r/min). Run at full throttle for one minute, then allow about 10 minutes of operation at three- Fuel G G G G Check to be sure you have plenty of fuel for your trip. Make sure there are no fuel leaks or gasoline fumes. Check fuel line connections to be sure they are tight (if equipped Yamaha fuel tank or boat tank). Be sure the fuel tank is positioned on a secure, 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. 31 Operation EMU27130 Controls G G G G Check throttle, shift, and steering for proper operation before starting the engine. [. . . ] Release the switch when oil reaches the upper level line on the engine oil tank. Do not use this emergency procedure unless the oil level warning indicators are working. 2. 4. OFF ON START 5. After using the emergency switch, turn off the main switch, then turn it back on. This resets the warning system to normal operation. [. . . ]