Yamaha YFM5FGD, YFM5FGHD, YFM5FGPD, YFM5FGPHD Grizzly 550 2013 Manual

The recommended oil for the Yamaha Grizzly 550 is Yamalube 4 10W-40 or any equivalent high-performance motor oil that meets or exceeds the specifications of API service SE, SF, SG, SH, SJ, SL, or SM.
The air filter should be inspected every 20 hours of operation or every month, whichever comes first. Clean the air filter if necessary and replace it if it is damaged or heavily soiled.
The recommended tire pressure for the Yamaha Grizzly 550 is 4.4 psi for the front tires and 3.6 psi for the rear tires. Always check the tire pressure when the tires are cold.
If your Grizzly 550 is having trouble starting, first check the battery for charge and connections. Ensure the fuel is fresh and the fuel valve is on. Inspect the spark plug for fouling or wear, and replace if necessary.
If the Grizzly 550 is overheating, check the coolant level and radiator for blockages. Ensure the fan is operating correctly, and inspect the thermostat for proper function. It may also be necessary to clean the radiator fins if they are clogged with dirt or debris.
To improve fuel efficiency, ensure regular maintenance is performed, including air filter cleaning and spark plug replacement. Avoid excessive idling, maintain proper tire pressure, and use recommended fuel grades.
To store your Grizzly 550 for an extended period, clean the vehicle thoroughly, change the oil, and fill the fuel tank with fresh fuel and fuel stabilizer. Disconnect the battery and store it in a cool, dry place. Cover the ATV to protect it from dust and moisture.
To adjust the suspension for rough terrain, increase the preload on both the front and rear shock absorbers. This can be done by turning the adjustment rings on the shocks clockwise to increase stiffness. Always refer to the owner's manual for specific adjustment procedures.
Common causes of brake issues include worn brake pads, air in the brake lines, or contaminated brake fluid. Regular inspection and maintenance of the braking system, including bleeding the brakes and replacing pads as needed, can help prevent these issues.
The spark plug should be inspected and cleaned every 3,000 miles or every 6 months. It should be replaced if there are signs of wear or damage. Using a high-quality spark plug such as the NGK CR7E is recommended for optimal performance.