Yamaha YFM350S Raptor 2004 Owner's Manual

Pages 176

Year 2004

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Yamaha YFM350S Raptor 2004 Specification

The Yamaha YFM350S Raptor 2004 is an all-terrain vehicle (ATV) designed for performance, durability, and versatility. The heart of the Raptor 350 is a 348cc, air-cooled, four-stroke, single-cylinder engine that delivers robust power and responsive acceleration, making it suitable for a variety of terrains. The engine is paired with a six-speed transmission, which includes a reverse gear, providing the rider with excellent control and flexibility in different riding conditions. The ATV features a Mikuni 36mm BSR carburetor that ensures efficient fuel delivery and optimal engine performance.

The frame is constructed from high-tensile steel, offering a balanced combination of strength and lightness, which enhances the handling and stability of the vehicle. The suspension system comprises independent double wishbone front suspension with 7.9 inches of travel and a swingarm rear suspension with 8.3 inches of travel, providing a smooth and comfortable ride over rough terrain. The braking system includes dual hydraulic disc brakes at the front and a single hydraulic disc brake at the rear, ensuring reliable stopping power.

The Yamaha YFM350S Raptor 2004 is equipped with 21-inch front tires and 20-inch rear tires, which offer excellent traction and durability. The ATV's ergonomics are designed for comfort, with a well-padded seat and handlebars positioned for easy control. The Raptor 350 also features a digital instrument panel that provides essential information such as speed, fuel level, and engine diagnostics.

In terms of dimensions, the vehicle has a length of 1,820 mm, a width of 1,070 mm, and a height of 1,100 mm, with a wheelbase of 1,220 mm. The dry weight of the ATV is 375 pounds, making it relatively lightweight and easy to maneuver. Overall, the Yamaha YFM350S Raptor 2004 is a reliable and versatile ATV that caters to both novice and experienced riders.

Yamaha YFM350S Raptor 2004 F.A.Q.

How do I change the oil on my 2004 Yamaha YFM350S Raptor?

To change the oil, first warm up the engine, then turn it off and place an oil pan under the drain plug. Remove the drain plug and let the oil drain completely. Replace the drain plug and remove the oil filter. Install the new oil filter, pour in the recommended oil, and check the level with the dipstick.

What type of oil is recommended for the Yamaha YFM350S Raptor 2004?

It is recommended to use SAE 10W-40 type oil designed for four-stroke engines, meeting the API service classification of SG or higher.

How can I troubleshoot starting issues with my Yamaha YFM350S Raptor?

Start by checking the battery connections and charge. Ensure the fuel valve is on and there is enough fuel. Check the spark plug for wear or damage and replace if necessary. Inspect the air filter for clogs, and clean or replace it if needed.

What is the proper way to adjust the chain tension on a 2004 Yamaha YFM350S Raptor?

To adjust the chain tension, first, loosen the rear axle nut. Adjust the chain tensioner screws evenly until you have about 1-1.5 inches of slack in the chain. Tighten the axle nut securely after adjusting.

How often should I clean the air filter on my Yamaha YFM350S Raptor?

The air filter should be inspected and cleaned every 20 hours of operation or more frequently if you are riding in dusty conditions.

What are the signs of a worn-out spark plug in the Yamaha YFM350S Raptor?

Signs of a worn-out spark plug include difficulty starting the engine, misfiring, reduced engine performance, and increased fuel consumption.

How can I improve the battery life of my 2004 Yamaha YFM350S Raptor?

To improve battery life, keep the terminals clean and tight, ensure the battery is fully charged when not in use, and store it in a cool, dry place. Consider using a battery maintainer if the vehicle is not used for extended periods.

What should I do if my Yamaha YFM350S Raptor overheats?

If the engine overheats, stop the vehicle immediately and let it cool. Check the coolant level and ensure the radiator is clean and unobstructed. Inspect the cooling fan operation and replace any faulty components.

How do I maintain the brakes on my Yamaha YFM350S Raptor?

Regularly inspect the brake pads for wear and replace them if necessary. Check the brake fluid level and top it off as needed. Ensure the brake lines are free of air by bleeding them periodically.

What could cause a loss of power in my Yamaha YFM350S Raptor?

Loss of power can be caused by a clogged air filter, dirty fuel filter, worn spark plug, or issues with the carburetor. Check and clean or replace these components as needed.