Yamaha YFM660RS Raptor 2004 Owner's Manual

Yamaha YFM660RS Raptor 2004 manual cover

Pages 188

Year 2004

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Yamaha YFM660RS Raptor 2004 Specification

The Yamaha YFM660RS Raptor 2004 is a high-performance all-terrain vehicle (ATV) designed for both recreational and competitive use. It features a robust 660cc, liquid-cooled, four-stroke, single-cylinder engine that delivers impressive power and torque, making it adept at handling various terrains. The engine is equipped with a five-valve cylinder head and a 10:1 compression ratio, ensuring efficient fuel combustion and optimal performance.

The transmission is a five-speed manual with a reverse gear, providing versatility and control in diverse riding conditions. The chassis is constructed from lightweight aluminum, contributing to the ATV's agility and maneuverability. The suspension system includes independent double wishbones at the front and a solid axle at the rear, both equipped with adjustable shocks to enhance ride comfort and stability.

Braking is managed by dual hydraulic disc brakes at the front and a single hydraulic disc brake at the rear, ensuring reliable stopping power. The Raptor 2004 rides on 21-inch front tires and 20-inch rear tires, which offer excellent traction and handling. The fuel tank capacity is 3.2 gallons, providing a substantial range for extended rides.

Additional features include a digital LCD display for monitoring speed, odometer, and other vital statistics, as well as ergonomic handlebars and a comfortable seat designed to reduce rider fatigue. The Yamaha YFM660RS Raptor 2004 combines powerful performance, advanced engineering, and rider-focused design, making it a top choice for ATV enthusiasts.

Yamaha YFM660RS Raptor 2004 F.A.Q.

How do I change the oil on a 2004 Yamaha YFM660RS Raptor?

To change the oil, first warm up the engine. Then, remove the drain plug at the bottom of the engine and let the oil drain into a pan. Replace the drain plug and remove the oil filter. Install a new filter and fill the engine with the recommended oil type and amount.

What is the recommended tire pressure for the Yamaha YFM660RS Raptor 2004?

The recommended tire pressure for the front tires is approximately 4 psi and for the rear tires is about 5 psi. Always check the tire pressure when the tires are cold.

How do I troubleshoot starting problems on my Yamaha Raptor 660?

Check the battery connections to ensure they are clean and tight. Verify the battery charge level. Inspect the starter relay and switch for any issues. If the problem persists, the starter motor may need inspection.

What type of coolant should I use for my 2004 Raptor 660?

Use ethylene glycol-based antifreeze with corrosion inhibitors specifically formulated for aluminum engines. Mix it with distilled water in a 50/50 ratio.

How often should the air filter be cleaned or replaced on a Raptor 660?

The air filter should be checked and cleaned every 20 hours of operation or more frequently in dusty conditions. Replace it if it shows signs of significant wear or damage.

What is the correct spark plug gap for the Yamaha YFM660RS Raptor?

The correct spark plug gap for the 2004 Yamaha YFM660RS Raptor is 0.028 to 0.031 inches (0.7 to 0.8 mm).

How can I adjust the carburetor on my 2004 Raptor 660?

First, warm up the engine. Turn the pilot screw in or out to obtain the highest idle speed, then adjust the idle speed screw to set the idle RPM to specification. Ensure the engine runs smoothly without hesitation.

Why does my Raptor 660 overheat?

Check the coolant level and ensure there are no leaks. Clean the radiator fins and ensure the fan is operating correctly. Obstructions or a faulty thermostat may also cause overheating.

How do I replace the brake pads on a 2004 Yamaha YFM660RS Raptor?

Remove the wheel and then the caliper by unbolting it. Take out the worn brake pads and install new ones, ensuring they are properly aligned. Reassemble the caliper and wheel, then test the brakes before riding.

What should I do if my Raptor 660's battery keeps dying?

Inspect the battery for damage or corrosion. Test the charging system to ensure it is working properly. If the battery and charging system are fine, check for any electrical shorts or components drawing power when the vehicle is off.