Yamaha XLT1200 Waverunner 2004 Owner's Manual

The recommended maintenance schedule includes routine checks every 10 hours, an intermediate service at 50 hours, and a comprehensive service at 100 hours. Key tasks include checking and replacing spark plugs, inspecting and cleaning the air filter, and ensuring proper lubrication of moving parts.
If your Waverunner is having starting issues, first check the battery for charge and proper connections. Next, inspect the spark plugs for wear or damage, and ensure the fuel is fresh. If problems persist, the starter relay or ignition switch may require inspection.
The Yamaha XLT1200 requires 2-stroke marine engine oil. Yamaha's own brand, Yamalube 2-W, is recommended for optimal performance and protection.
To improve fuel efficiency, ensure that the engine is well-maintained with clean spark plugs and a properly tuned carburetor. Regularly inspect and clean the air filter, and avoid carrying unnecessary weight. Properly inflated tires and smooth throttle control also contribute to improved efficiency.
If your Waverunner is overheating, first check the cooling system for obstructions or damage. Inspect the water intake grate and ensure it is free of debris. Verify the correct operation of the thermostat and examine the impeller for damage. If the problem persists, professional service may be required.
To winterize your Waverunner, begin by cleaning and drying the hull. Add fuel stabilizer to the fuel system and run the engine briefly to circulate. Drain the water from the engine and exhaust, and lubricate all moving parts. Store the Waverunner in a dry, cool place, covered and elevated if possible.
Excessive vibration can be caused by a damaged impeller or drive shaft. Inspect the impeller for signs of wear or debris. Additionally, check the engine mounts for damage or looseness. If the issue continues, a detailed inspection by a professional may be necessary.
Sudden power loss might be due to clogged fuel filters, dirty carburetors, or worn spark plugs. Ensure the fuel is clean and check the fuel lines for leaks or clogs. Inspect the air filter for blockages and replace any worn components.
To replace the spark plugs, first remove the engine cover to access the plugs. Use a spark plug socket to gently unscrew each plug. Install the new plugs by hand to avoid cross-threading, then tighten with a torque wrench to the manufacturer's specifications.
To clean the hull, rinse it with fresh water to remove salt and debris. Use a mild marine soap and a soft brush to scrub the surface, then rinse thoroughly. For tough stains, a specialized marine hull cleaner can be used. Always finish with a wax to protect the hull.