Yamaha YZ250FS 2004 Owner's Manual

Pages 304

Year 2004

Language(s)

of 304

Yamaha YZ250FS 2004 Specification

The Yamaha YZ250FS 2004 is a high-performance off-road motorcycle designed for competitive motocross racing. This model features a powerful 250cc, liquid-cooled, four-stroke engine that delivers impressive torque and high-revving power, making it ideal for varied track conditions. The engine is equipped with a five-valve cylinder head and a Keihin FCR37 flat-slide carburetor, which ensures precise fuel delivery and optimal combustion efficiency.

The chassis of the YZ250FS 2004 is constructed from lightweight aluminum, providing a perfect balance of strength and reduced weight for enhanced maneuverability and agility. This frame is complemented by a fully adjustable suspension system that includes a 48mm Kayaba inverted fork at the front and a Kayaba monocross shock at the rear, both offering extensive tuning capabilities to accommodate different riding styles and terrains.

The braking system features robust components, with a 250mm front disc brake and a 245mm rear disc brake, delivering reliable stopping power and excellent control. The bike is equipped with 21-inch front and 19-inch rear wheels, shod with high-traction tires designed for optimal grip on various surfaces. The ergonomics of the YZ250FS 2004 include a comfortable, well-padded seat and strategically positioned handlebars and footpegs, ensuring a natural riding posture and reducing rider fatigue during long races.

Additional features include a compact and lightweight titanium exhaust system that enhances performance while minimizing weight. The overall design of the Yamaha YZ250FS 2004 reflects Yamaha's commitment to innovation and quality, making it a formidable choice for serious motocross enthusiasts seeking a competitive edge on the track.

Yamaha YZ250FS 2004 F.A.Q.

What is the recommended oil type and capacity for Yamaha YZ250FS 2004?

The recommended oil type is 10W-40, and the oil capacity is approximately 1.1 liters when changing the oil and filter.

How often should I change the oil on my Yamaha YZ250FS 2004?

It is recommended to change the oil every 5-10 hours of riding, depending on the riding conditions and intensity.

What is the spark plug type and gap specification for Yamaha YZ250FS 2004?

The recommended spark plug type is NGK CR8E, with a gap specification of 0.7-0.8 mm.

How do I troubleshoot starting issues with Yamaha YZ250FS 2004?

Check the spark plug, ensure the fuel is fresh, inspect the battery, and verify that the kill switch is not engaged.

What is the correct valve clearance for Yamaha YZ250FS 2004?

The correct valve clearance is 0.10 mm for the intake and 0.15 mm for the exhaust valves.

How can I improve the suspension performance on Yamaha YZ250FS 2004?

Consider adjusting the preload, compression, and rebound settings, and ensure the suspension components are regularly serviced.

What are common issues with the Yamaha YZ250FS 2004 clutch system?

Common issues include clutch slippage and difficulty in gear shifting, often resolved by adjusting the clutch cable and checking the clutch plates for wear.

How do I maintain the chain on my Yamaha YZ250FS 2004?

Regularly clean and lubricate the chain, check for proper tension, and inspect for wear and tear. Adjust the tension as needed.

What should I do if my Yamaha YZ250FS 2004 overheats?

Check the coolant level, inspect the radiator for blockages, and ensure the water pump is functioning properly. Avoid riding in extreme conditions.

How can I enhance the performance of my Yamaha YZ250FS 2004?

Consider upgrading the exhaust system, optimizing the air intake, and re-jetting the carburetor for improved performance.