Yamaha YFZ450Y 2009 Owner's Manual

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Year 2009

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Yamaha YFZ450Y 2009 Specification

The Yamaha YFZ450Y 2009 is a high-performance all-terrain vehicle (ATV) designed for sport and recreational use. It features a powerful 449cc liquid-cooled, 4-stroke, single-cylinder engine with a compression ratio of 11.4:1, providing robust power and torque for challenging terrains. The engine is coupled with a five-speed manual transmission, ensuring precise control and responsiveness in various riding conditions. The YFZ450Y boasts a lightweight hybrid aluminum and steel chassis, enhancing durability while maintaining a low weight for improved maneuverability.

The suspension system includes independent double wishbones with KYB piggyback shocks in the front, offering 9.1 inches of travel, and a fully adjustable KYB piggyback shock at the rear with 10.6 inches of travel. This setup provides superior handling and stability over rough terrain. The ATV's braking system consists of dual hydraulic discs in the front and a single hydraulic disc in the rear, delivering reliable stopping power.

Its ergonomic design features a comfortable seat and intuitive control layout, allowing for extended riding sessions without fatigue. The YFZ450Y is equipped with 21-inch front tires and 20-inch rear tires, providing excellent traction and stability. The ATV's overall dimensions are 70.7 inches in length, 46.1 inches in width, and 42.9 inches in height, with a seat height of 31.5 inches and a ground clearance of 9.3 inches. The fuel tank capacity is 2.6 gallons, suitable for long rides without frequent refueling.

Overall, the Yamaha YFZ450Y 2009 combines advanced engineering, robust performance, and rider-centric features, making it a formidable choice for enthusiasts seeking exhilarating off-road experiences.

Yamaha YFZ450Y 2009 F.A.Q.

What is the recommended oil type for the Yamaha YFZ450Y 2009?

The recommended oil type for the Yamaha YFZ450Y 2009 is Yamalube 4, 10W-40 or 20W-50, depending on the climate. It's important to use high-quality, 4-stroke engine oil.

How often should I change the oil in my Yamaha YFZ450Y 2009?

Oil changes are typically recommended every 20 hours of use, or after every 2-3 rides. Always refer to the owner's manual for specific maintenance intervals.

What should I do if my Yamaha YFZ450Y 2009 won't start?

If your YFZ450Y won't start, check the battery charge, inspect the spark plug for wear, ensure the fuel is fresh, and verify that the kill switch is in the correct position.

How do I properly clean the air filter on a Yamaha YFZ450Y 2009?

Remove the air filter and wash it with a mild detergent and water. Allow it to dry completely before applying a light coat of air filter oil and reinstalling it.

What is the recommended tire pressure for the Yamaha YFZ450Y 2009?

The recommended tire pressure is 4 psi for the front tires and 4 psi for the rear tires. Adjust based on terrain and riding conditions.

How can I improve the suspension setup on my Yamaha YFZ450Y 2009?

To improve suspension, adjust the preload, compression, and rebound settings according to your weight and riding style. Refer to the manual for detailed instructions.

What are the signs that the clutch needs adjustment or replacement?

Signs include slipping under load, difficulty shifting, and a spongy clutch lever. If adjustments don't help, a replacement might be necessary.

How do I store my Yamaha YFZ450Y 2009 during the off-season?

Clean the ATV thoroughly, change the oil, fill the tank with fuel stabilizer, disconnect the battery, and store it in a dry, covered area.

What should I check during a pre-ride inspection of my Yamaha YFZ450Y 2009?

Check the tire pressure, oil level, brake function, throttle response, and look for any loose bolts or parts. Ensure the lights and controls are functioning properly.

How can I troubleshoot overheating issues on my Yamaha YFZ450Y 2009?

Check the coolant level, ensure the radiator is not clogged, inspect the fan operation, and verify that the water pump is functioning correctly.