Yamaha FX High Output FX Cruiser High Output Waverunner 2004 Owner's Manual
![Yamaha FX High Output FX Cruiser High Output Waverunner 2004 manual cover](/images/c3d47c4252cf6ee93409fa5a/thumbs/thumb175x175.webp)
It is recommended to use unleaded gasoline with a minimum octane rating of 87 for optimal performance. Avoid using fuel with more than 10% ethanol content.
The engine oil should be changed every 50 hours of operation or at least once a year, whichever comes first. Be sure to use the recommended oil type specified in the owner's manual.
After using the Waverunner in saltwater, flush the cooling system with fresh water using the built-in flushing connector located at the rear of the craft. Run the engine at idle while flushing for about 10 minutes.
Check the battery for a proper charge and secure connections. Inspect the fuel level and ensure the fuel valve is open. Verify that the safety lanyard is properly attached. If problems persist, consult a professional technician.
Before winter storage, perform an oil change, flush the cooling system, fill the fuel tank and add a stabilizer, remove the battery and store it in a cool, dry place, and cover the Waverunner to protect it from the elements.
Maintain a steady speed, avoid rapid acceleration, ensure the hull is clean and free from marine growth, and perform regular maintenance as recommended by the manufacturer to keep the engine running efficiently.
The 2004 Yamaha FX Cruiser High Output typically uses a 12-volt marine-grade battery. It's essential to choose a battery with the correct specifications for reliable performance.
Inspect the jet pump regularly for debris and damage. Remove any obstructions and ensure the impeller is in good condition. Lubricate the moving parts as specified in the owner's manual.
If overheating occurs, shut off the engine immediately and allow it to cool down. Check for blockages in the cooling system, ensure proper water flow, and inspect the cooling lines for damage.
To enhance performance, consider upgrading the intake grate, impeller, and exhaust system. Regular maintenance and using high-quality fuel and lubricants can also improve overall performance.