User manual YAMAHA 175

[. . . ] VZ150 VZ175 OWNER'S MANUAL U. S. A. Edition LIT-18626-07-01 68J-28199-19 EMU25071 ZMU01690 Read this owner's manual carefully before operating your outboard motor. Important manual information EMU31280 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. [. . . ] Check that the static water level on the exhaust housing is low enough to prevent water entry into the powerhead, when water rises due to waves when the outboard is not running. EMU26910 Mounting the outboard motor EWM00820 WARNING G G Overpowering a boat could cause severe instability. Do not install an outboard motor with more horsepower than the maximum rating on the capacity plate of the boat. If the boat does not have a capacity plate, consult the boat manufacturer. The information presented in this section is intended as reference only. It is not possible to provide complete instructions for every possible boat and motor combination. Proper mounting depends in part on experience and the 1 1. Center line (keel line) EMU26930 ZMU01873 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 32 Operation 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. life. ECM00750 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 G The optimum mounting height of the outboard motor is affected by the boat/motor combination and the desired use. Test runs at different heights can help determine the optimum mounting height. Consult your Yamaha dealer or boat manufacturer for further information on determining the proper mounting height. For instructions on setting the trim angle of the outboard motor, see page 42. EMU27041 Breaking in engine Your new engine requires a period of breakin to allow mating surfaces of moving parts to wear in evenly. Correct break-in will help ensure proper performance and longer engine EMU27091 ZMU01945 Procedure for HPDI models Run the engine under load (in gear with a 33 Operation propeller installed) for 10 hours 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. [. . . ] Do not use this emergency procedure unless the oil level warning indicators are working. Turn on the main switch. ZMU04010 1. Remote oil tank 2 ZMU01908 4. ZMU01906 3. Lift the emergency switch to pump reserve oil into the engine oil tank from the remote oil tank. 5. After using the emergency switch, turn off the main switch, then turn it back on. [. . . ]