Yamaha SuperJet 700 Waverunner 2002 Owner's Manual
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To winterize your Yamaha SuperJet 700, first clean it thoroughly and flush the engine with fresh water. Next, add a fuel stabilizer to the gas tank and run the engine for a few minutes to distribute it. Remove the battery and store it in a cool, dry place. Finally, cover the Waverunner with a breathable cover and store it in a sheltered location.
If your SuperJet 700 is not starting, check the battery charge and connections first. Ensure the fuel is fresh and the fuel lines are not clogged. Inspect the spark plugs for wear and replace them if necessary. If the problem persists, consult a professional technician.
It's recommended to check and potentially replace the spark plugs every 50 hours of operation or at the start of each season. Regular checks can prevent performance issues and ensure optimal efficiency.
For the Yamaha SuperJet 700, it is recommended to use Yamalube 2-W marine oil or any high-quality 2-stroke engine oil that meets or exceeds NMMA TC-W3 standards.
After using your SuperJet 700 in saltwater, attach a garden hose to the flush port. Start the engine, then turn on the water and let it run for about 5 minutes to flush out salt and debris. Turn off the water before stopping the engine to avoid water entering the exhaust system.
The recommended maintenance schedule includes checking the fuel system, throttle and choke operation, and lubrication points every 10 hours or monthly. Inspect and clean the spark plugs, air filter, and cooling system every 50 hours or annually. Consult the owner's manual for detailed tasks.
Improving performance can be achieved by regularly maintaining the engine, using high-quality fuel and oil, and ensuring the hull is clean and free from damage. Additionally, consider upgrading the intake grate, impeller, or exhaust system for enhanced performance.
Overheating can be caused by a clogged cooling system, low coolant levels, or a malfunctioning thermostat. Check for blockages in the cooling lines and ensure the impeller is functioning properly. If the issue persists, consult a professional for a thorough inspection.
Signs of a worn impeller include reduced acceleration, cavitation, and unusual vibrations or noises from the jet pump area. Inspect the impeller for physical damage or excessive wear and replace it if necessary.
Prevent corrosion by rinsing the Waverunner with fresh water after each use, especially after exposure to saltwater. Apply a corrosion inhibitor or a light coat of marine-grade oil on metal components. Store the watercraft in a dry place away from direct sunlight.