Yamaha WR250FN 2001 Owner's Manual
![Yamaha WR250FN 2001 manual cover](/images/de262b6fdab5b990334c3964/thumbs/thumb175x175.webp)
For the Yamaha WR250FN 2001, it's recommended to use fully synthetic 10W-40 motorcycle oil. Ensure it meets JASO MA standards for optimal performance.
The air filter should be checked after every ride and cleaned or replaced every 600 miles or sooner if you ride in dusty conditions.
The recommended tire pressure is 15 psi for the front tire and 18 psi for the rear tire. Adjustments may be needed based on terrain and load.
Starting issues could be due to a drained battery, faulty spark plug, or clogged fuel lines. Check and charge the battery, inspect and clean the spark plug, and ensure the fuel is fresh.
Adjust the front fork by turning the rebound and compression damping adjusters. For the rear, adjust the spring preload and rebound damping to suit your weight and riding style.
Stop the bike immediately and let it cool. Check the coolant level and ensure the radiator is not clogged. Consider using a higher boiling point coolant for better performance.
To improve fuel efficiency, keep the engine well-tuned, clean the air filter regularly, maintain proper tire pressure, and avoid aggressive riding.
Regular maintenance includes oil changes every 1,000 miles, chain lubrication every 300 miles, checking brake pads, and inspecting cables and hoses for wear.
Loosen the rear axle nut and adjust the tensioner bolts evenly on both sides until the chain has about 1.2 inches of slack in the middle. Tighten all bolts securely.
The recommended spark plug is NGK CR8E. It should be inspected every 1,000 miles and replaced every 3,000 miles for optimal performance.