Yamaha RST90X, RST90GTX 2008 Owner's Manual

Yamaha RST90X, RST90GTX 2008 manual cover
Pages 90
Year 2008
Language(s)
English en

Yamaha RST90X, RST90GTX 2008 Specification

The 2008 Yamaha RST90X and RST90GTX are high-performance snowmobiles designed for enthusiasts seeking power and reliability in varying snow conditions. Both models feature a robust Genesis 120 four-stroke engine, delivering smooth and efficient performance with a displacement of 973 cc. This engine is liquid-cooled and equipped with a 12-valve cylinder head, ensuring optimal airflow and combustion efficiency. The drive system includes a CVT with a YVXC clutch, providing seamless acceleration and adaptability to different terrains.

The suspension system on the RST90X and RST90GTX is engineered for comfort and control, featuring a front independent double wishbone with 9 inches of travel and a rear ProComfort suspension with 11.5 inches of travel. This configuration allows for superior handling and a smoother ride over rough trails. Both models are equipped with a 15-inch wide track that enhances stability and traction, which is crucial for navigating deep snow and icy surfaces.

The snowmobiles incorporate a lightweight aluminum chassis, reducing overall weight while maintaining structural integrity. For braking, they utilize a hydraulic disc system, ensuring reliable stopping power in all conditions. The fuel capacity is 10.4 gallons, providing ample range for extended rides without frequent refueling.

Aesthetically, the RST90X and RST90GTX boast a sleek and aerodynamic design, complemented by a comfortable seat and handlebars ergonomically designed for extended use. Additionally, the models feature a digital gauge display offering essential information such as speed, fuel level, and engine diagnostics, enhancing the rider's experience. These snowmobiles are engineered to combine performance, durability, and comfort, making them suitable for both leisure and competitive riding.

Yamaha RST90X, RST90GTX 2008 F.A.Q.

What is the recommended oil type for a 2008 Yamaha RST90X?

The recommended oil type for the 2008 Yamaha RST90X is Yamalube 4, 10W-40 or any high-quality, 4-stroke motor oil equivalent.

How often should I change the spark plugs on the Yamaha RST90GTX 2008?

It is advisable to check and replace the spark plugs every 3,000 miles or once a year, whichever comes first, to ensure optimal performance.

What should I do if my RST90X won't start?

First, check the fuel level and battery condition. Ensure the kill switch is in the 'run' position and inspect the spark plugs for fouling.

How can I winterize my 2008 Yamaha RST90GTX?

To winterize, drain the fuel system, add a fuel stabilizer, change the oil, lubricate moving parts, and store in a dry, covered location.

What is the best way to clean the air filter on my RST90X?

Remove the air filter and gently clean it with compressed air. If it's very dirty, wash with warm soapy water, rinse, dry, and re-oil lightly.

How do I adjust the suspension on the Yamaha RST90GTX 2008 for a smoother ride?

Adjust the suspension by changing the preload settings on the front forks and rear shock absorber to match your weight and riding conditions.

What should I check if my RST90X has poor fuel efficiency?

Inspect the air filter, fuel injectors, and throttle body for dirt or clogs. Ensure tires are properly inflated and check for any engine error codes.

How can I improve the braking performance on my Yamaha RST90GTX?

Ensure the brake pads are not worn out, check and bleed the brake fluid system, and make sure the brake discs are clean and not warped.

What is the correct tire pressure for the 2008 RST90X?

The recommended tire pressure is typically 32 psi for the front tire and 36 psi for the rear tire, but always refer to the owner's manual for specifics.

How do I troubleshoot an overheating issue in my Yamaha RST90GTX 2008?

Check the coolant level and radiator for blockages, ensure the thermostat is functioning, and inspect the water pump and hoses for leaks.