Yamaha YFM09GYXM Grizzly 90 2021 Owner's Manual

Yamaha YFM09GYXM Grizzly 90 2021 manual cover
Pages 132
Year 2021
Language(s)
English en

Yamaha YFM09GYXM Grizzly 90 2021 Specification

The Yamaha YFM09GYXM Grizzly 90 2021 is a robust all-terrain vehicle (ATV) designed for younger riders seeking a balance of performance, safety, and durability. Powered by an air-cooled, 90cc single-cylinder, four-stroke engine, the Grizzly 90 delivers reliable and consistent power suitable for beginners. Its engine is coupled with a fully automatic CVT (Continuously Variable Transmission) that includes forward, neutral, and reverse gears, simplifying operation for novice riders. The Grizzly 90 features a rugged, compact chassis with an independent double-wishbone front suspension and a swingarm rear suspension, both offering 5 inches of travel to ensure a smooth ride over rough terrain.

The ATV is equipped with drum brakes on both the front and rear, providing reliable stopping power. Safety is a priority with the Grizzly 90, which includes a speed limiter and an adjustable throttle stop to help parents control the maximum speed and power output. The electric start with a backup kickstart ensures reliable ignition in various conditions. The Grizzly 90 boasts durable 19-inch front and 18-inch rear tires that provide excellent traction and stability on diverse surfaces.

Ergonomically designed handlebars and a comfortable seat height cater to younger riders, promoting better control and confidence. A robust steel frame and skid plates protect vital components and enhance the ATV's longevity. Weighing approximately 307 pounds and with a fuel capacity of 1.7 gallons, the Grizzly 90 is lightweight yet sturdy, offering extended riding sessions without frequent refueling. Yamaha’s attention to detail and commitment to quality make the YFM09GYXM Grizzly 90 a dependable and enjoyable ATV for young enthusiasts, blending safety, performance, and durability in a compact package.

Yamaha YFM09GYXM Grizzly 90 2021 F.A.Q.

What is the recommended oil type and capacity for the Yamaha YFM09GYXM Grizzly 90 2021?

The recommended oil type for the Yamaha YFM09GYXM Grizzly 90 2021 is Yamalube 4, 10W-40, and the oil capacity is approximately 1.3 quarts (1.2 liters) when changing the oil and oil filter.

How often should I change the air filter on the Yamaha Grizzly 90?

It is recommended to inspect the air filter every 20 hours of use or monthly. Clean or replace the air filter as necessary to ensure optimal performance and longevity of the engine.

What is the proper tire pressure for my Yamaha Grizzly 90?

The recommended tire pressure for the Yamaha Grizzly 90 is 4.4 psi (30 kPa) for both front and rear tires. Always check and adjust the tire pressure when the tires are cold.

How do I troubleshoot an electrical issue on my Grizzly 90 where the ATV won't start?

Start by checking the battery connections to ensure they are clean and tight. Next, examine the main fuse and replace it if necessary. If the problem persists, inspect the ignition switch and starter relay for faults.

What are the steps to adjust the idle speed on the Yamaha Grizzly 90?

To adjust the idle speed, locate the idle adjustment screw on the carburetor. Turn the screw clockwise to increase idle speed or counterclockwise to decrease it. Aim for an idle speed of 1,700–1,900 RPM.

How can I maintain the chain drive on my Yamaha Grizzly 90?

Regularly inspect the chain for wear and tension. Clean the chain with a suitable cleaner and lubricate it with a high-quality chain lube. Adjust the tension to have about 10-20 mm of slack in the chain.

What should I do if the brakes on my Grizzly 90 feel spongy?

If the brakes feel spongy, check the brake fluid level and top up if necessary. Inspect the brake lines and connections for leaks or air bubbles. Bleed the brakes to remove any trapped air.

How do I clean and maintain the spark plug on the Yamaha Grizzly 90?

Remove the spark plug and inspect it for any signs of wear or carbon buildup. Clean it using a wire brush and check the gap, adjusting if necessary. Replace the spark plug if it shows signs of damage.

What regular maintenance should be performed on the Grizzly 90's suspension system?

Regularly inspect the suspension components for any signs of damage or wear. Check the shock absorber function and ensure all nuts and bolts are securely tightened. Lubricate the suspension pivot points as needed.

How can I improve the fuel efficiency of my Yamaha Grizzly 90?

To improve fuel efficiency, ensure the air filter is clean, maintain proper tire pressure, use the recommended oil type, and avoid carrying excessive loads. Regular maintenance and smooth riding can also help.