Yamaha GP1300R Waverunner 2008 Owner's Manual

The Yamaha GP1300R Waverunner 2008 is designed to run on regular unleaded gasoline with a minimum octane rating of 87. Using a higher octane fuel can enhance performance but is not necessary.
It's recommended to change the oil every 50 hours of use or at least once a year, whichever comes first. Regular oil changes help maintain engine performance and longevity.
To winterize your Yamaha GP1300R, start by flushing the engine with fresh water, add fuel stabilizer to the gas tank, remove the battery and store it in a dry place, and apply a fogging oil to the cylinders to prevent rust.
First, check the battery connections and ensure the battery is charged. Next, inspect the fuel system for any blockages or stale fuel. If the issue persists, consult the owner's manual for troubleshooting or contact a certified Yamaha technician.
Performance can be enhanced by regular maintenance, using high-quality fuel, ensuring the impeller and pump are clear of debris, and considering aftermarket performance parts like a high-flow air filter or performance exhaust system.
Check for blockages in the cooling system, inspect the water intake grate and cooling hoses for debris, and ensure the thermostat is functioning properly. Regularly flushing the cooling system can help prevent overheating.
Rinse the hull with fresh water after each use to remove salt and debris. Use a mild soap and soft cloth for stubborn dirt. Apply a marine wax periodically to protect the surface and maintain its appearance.
Refer to the tire sidewall for the manufacturer's recommended tire pressure, typically around 50 psi for most trailer tires. Proper inflation is crucial for safe towing.
Use a multimeter to test the battery voltage. A fully charged battery should read around 12.6 volts or higher. If the voltage is low, recharge the battery and test again. If it fails to hold a charge, consider replacing it.
Regularly inspect the jet pump for debris and damage, ensure the impeller is in good condition, and check the pump bearings for wear. Lubricating the moving parts can help maintain optimal performance.