Yamaha RS90K, RS90MK, RS90RK, RSG90K 2005 Owner's Manual

Yamaha RS90K, RS90MK, RS90RK, RSG90K 2005 manual cover

Pages 104

Year 2005

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of 104

Yamaha RS90K, RS90MK, RS90RK, RSG90K 2005 Specification

The 2005 Yamaha RS90K, RS90MK, RS90RK, and RSG90K models are part of Yamaha's lineup of snowmobiles designed for performance, reliability, and comfort in diverse snow conditions. These models are equipped with a 973cc, four-stroke, three-cylinder Genesis engine, which provides a robust combination of power and efficiency. The engine's advanced design ensures smooth acceleration and consistent performance across a range of terrains. Each model features a lightweight aluminum chassis, contributing to improved handling and maneuverability. The suspension system includes a front Independent Double Wishbone and a rear ProAction Plus suspension, providing a smooth ride and excellent shock absorption.

The models are equipped with a wide track for enhanced stability and control, making them suitable for both recreational and utility purposes. The seating is ergonomically designed to offer comfort during long rides, with a heated hand and thumb warmers included for added comfort in cold weather conditions. The digital instrument panel provides essential information such as speed, engine temperature, and fuel levels, ensuring that the rider is well-informed at all times. The models also feature an electric start system, simplifying the ignition process, and a reverse gear for easy maneuverability in tight spaces.

Aesthetic design elements include sleek bodywork with a focus on aerodynamics, available in various color options to appeal to different preferences. The fuel efficiency of these snowmobiles is notable, owing to the four-stroke engine technology, which also ensures lower emissions compared to two-stroke engines. Overall, the 2005 Yamaha RS90K, RS90MK, RS90RK, and RSG90K models offer a blend of performance, comfort, and reliability, making them a solid choice for snow enthusiasts seeking a well-rounded snowmobile experience.

Yamaha RS90K, RS90MK, RS90RK, RSG90K 2005 F.A.Q.

What is the recommended maintenance schedule for the Yamaha RS90 series?

Perform an oil change every 500 miles or at the start of each season, check and replace the spark plugs every 1,000 miles, and inspect the drive belt for wear every 1,500 miles. Regularly check fluid levels, brakes, and suspension.

How can I troubleshoot starting issues with my Yamaha RS90K?

First, ensure the battery is fully charged. Check the spark plugs for fouling and replace them if necessary. Inspect the fuel lines for blockages and ensure fresh fuel is used. Finally, verify the kill switch is in the 'Run' position.

What type of oil should I use for my Yamaha RS90MK?

Use Yamalube 4-stroke oil or equivalent 10W-30 or 10W-40 oil that meets or exceeds the specifications for API service classification SE, SF, SG, SH, SJ, or SL.

How do I adjust the carburetor on a Yamaha RSG90K?

To adjust the carburetor, locate the air-fuel mixture screw. Turn it slowly clockwise until the engine starts to lose RPM, then turn it counterclockwise until it runs smoothly. Make slight adjustments to find the optimal setting.

What should I do if my Yamaha RS90RK is overheating?

Check the coolant level and top it up if necessary. Inspect the radiator and hoses for leaks or blockages. Ensure the fan is operational and not obstructed. If the problem persists, consult a professional technician.

How can I improve the fuel efficiency of my Yamaha RS90K?

Maintain proper tire pressure, perform regular engine maintenance, use high-quality fuel, and avoid rapid acceleration and high speeds. Keeping the snowmobile well-tuned will also enhance fuel efficiency.

What is the procedure for replacing the drive belt on a Yamaha RS90MK?

Remove the belt guard, then compress the secondary clutch to relieve tension on the belt. Slide the belt off the clutch and replace it with a new one, ensuring it is properly seated. Reinstall the belt guard.

Why is my Yamaha RSG90K making a rattling noise?

The rattling noise could be due to loose components such as the exhaust system, engine mounts, or suspension parts. Inspect and tighten any loose parts. If the noise persists, it may indicate a more serious internal issue.

How do I winterize my Yamaha RS90RK to prevent damage during storage?

Drain the fuel tank and replace it with a fuel stabilizer. Change the oil and filter, lubricate all moving parts, and remove the battery to store it in a cool, dry place. Cover the snowmobile to protect it from dust and moisture.

What are the signs that the spark plugs in my Yamaha RS90K need replacing?

Signs include difficulty starting the engine, poor acceleration, engine misfires, and decreased fuel efficiency. Inspect the spark plugs for wear or carbon buildup, and replace them if necessary.