Contents

- GENERAL INFORMATION
  - LOCATION OF IMPORTANT LABELS
  - DESCRIPTION
  - IDENTIFICATION
  - FEATURES
  - INCLUDED PARTS
  - IMPORTANT INFORMATION
  - BASIC SERVICE INFORMATION
  - SPECIAL TOOLS
  - CONTROL FUNCTIONS
  - MULTI-FUNCTION DISPLAY
  - STARTING AND BREAK-IN
  - MAINTENANCE AFTER BREAK-IN
  - TORQUE-CHECK POINTS
  - MOTORCYCLE CARE AND STORAGE
- SPECIFICATIONS
  - GENERAL SPECIFICATIONS
  - ENGINE SPECIFICATIONS
  - CHASSIS SPECIFICATIONS
  - ELECTRICAL SPECIFICATIONS
  - TIGHTENING TORQUES
  - LUBRICATION POINTS AND LUBRICANT TYPES
  - LUBRICATION SYSTEM CHART AND DIAGRAMS
  - CABLE ROUTING DIAGRAM
- PERIODIC CHECKS AND ADJUSTMENTS
  - PERIODIC MAINTENANCE
  - PRE-OPERATION INSPECTION AND MAINTENANCE
  - ENGINE
  - CHASSIS
  - ELECTRICAL SYSTEM
- TUNING
  - CHASSIS
- CHASSIS
  - GENERAL CHASSIS
  - FRONT WHEEL
  - REAR WHEEL
  - FRONT BRAKE
  - REAR BRAKE
  - HANDLEBAR
  - FRONT FORK
  - STEERING HEAD
  - REAR SHOCK ABSORBER ASSEMBLY
  - SWINGARM
  - CHAIN DRIVE
- ENGINE
  - ENGINE REMOVAL
  - CAMSHAFT
  - CYLINDER HEAD
  - VALVES AND VALVE SPRINGS
  - CYLINDER AND PISTON
  - ELECTRIC STARTER
  - CLUTCH
  - KICKSTATER
  - SHIFT SHAFT
  - OIL PUMP AND BALANCER GEAR
  - GENERATOR AND STARTER CLUTCH
  - CRANKCASE
  - CRANKSHAFT ASSEMBLY AND BALANCER SHAFT
  - TRANSMISSION
- COOLING SYSTEM
  - RADIATOR
  - WATER PUMP
- FUEL SYSTEM
  - FUEL TANK
  - THROTTLE BODY
- ELECTRICAL SYSTEM
  - IGNITION SYSTEM
  - ELECTRIC STARTING SYSTEM
  - CHARGING SYSTEM
  - LIGHTING SYSTEM
  - SIGNALING SYSTEM
  - COOLING SYSTEM
  - FUEL INJECTION SYSTEM
  - FUEL PUMP SYSTEM
  - ELECTRICAL COMPONENTS
- TROUBLESHOOTING
  - TROUBLESHOOTING
  - LIST OF SELF-DIAGNOSTIC AND FAIL-SAFE ACTIONS
- WR250FF 2015WIRING DIAGRAM

Yamaha WR250FF 2015 Owner's Manual

Pages 426

Year 2015

Language(s)

of 426

Yamaha WR250FF 2015 Specification

The Yamaha WR250F 2015 is a high-performance off-road motorcycle engineered for enduro enthusiasts and competitive riders. It features a 250cc liquid-cooled, DOHC, 4-stroke engine with a titanium 5-valve cylinder head, ensuring optimal power delivery and efficiency. The fuel injection system is designed to provide precise throttle response and enhanced performance across various terrains. The engine is paired with a wide-ratio 6-speed transmission, offering versatility for different riding conditions.

The chassis of the WR250F is built using a lightweight aluminum bilateral beam frame that enhances rigidity and handling precision. The suspension system includes fully adjustable KYB spring-type forks at the front and a link-type rear shock, providing excellent shock absorption and stability on rough trails. The braking system features a 270mm front disc brake and a 245mm rear disc brake, delivering reliable stopping power.

Ergonomically, the WR250F offers a slim and comfortable seat design, allowing greater rider movement and control. The compact fuel tank holds 7.5 liters, ensuring extended riding sessions without frequent refueling. The bike also incorporates advanced electronics such as a digital enduro meter that displays speed, average speed, and trip distance, essential for navigating challenging courses.

Additional features include a high-output stator to power electrical components and a robust air filtration system to maintain engine performance in dusty conditions. The Yamaha WR250F 2015 is designed to comply with off-road competition regulations, making it a versatile choice for both amateur riders and seasoned professionals seeking a reliable, high-performance enduro motorcycle.

Yamaha WR250FF 2015 F.A.Q.

What type of oil is recommended for the Yamaha WR250F 2015?

The recommended oil for the Yamaha WR250F 2015 is Yamalube 4-R, 10W-50, or an equivalent high-quality motor oil. Ensure it is designed for use in high-performance 4-stroke engines.

How often should I change the oil on my Yamaha WR250F 2015?

It is recommended to change the oil every 10 hours of riding or every 600 miles, whichever comes first. More frequent changes may be necessary under severe riding conditions.

What is the correct tire pressure for the Yamaha WR250F 2015?

The recommended tire pressure for the WR250F 2015 is 15 psi for both front and rear tires. Adjust the pressure based on terrain and riding conditions.

How do I adjust the suspension on the Yamaha WR250F 2015 for better off-road performance?

To adjust the suspension, use the clickers located on the forks and shock absorber. For off-road, try softening the compression and rebound settings for a more comfortable ride. Consult your owner's manual for specific adjustments.

What spark plug is used in the Yamaha WR250F 2015 and what is the gap setting?

The recommended spark plug for the WR250F 2015 is the NGK CR8E. The spark plug gap should be set to 0.7 to 0.8 mm (0.028 to 0.031 inches).

How do I troubleshoot starting issues with my Yamaha WR250F 2015?

If you experience starting issues, check the battery charge, ensure the fuel is fresh, inspect the spark plug, and verify that the kill switch is in the correct position. Also, check for potential air filter blockages.

What regular maintenance should be performed on the Yamaha WR250F 2015?

Regular maintenance includes oil changes, air filter cleaning, chain lubrication, brake inspection, coolant level checks, and valve clearance adjustments. Follow the maintenance schedule in the owner's manual.

How can I improve the fuel efficiency of my Yamaha WR250F 2015?

To improve fuel efficiency, maintain proper tire pressure, keep the air filter clean, use high-quality fuel, and avoid excessive idling. Regular maintenance and tuning can also contribute to better fuel economy.

What is the recommended coolant for the Yamaha WR250F 2015?

Yamaha recommends using a high-quality ethylene glycol-based coolant that is pre-mixed with distilled water in a 50/50 ratio. Ensure it is safe for aluminum engines.

How do I adjust the chain tension on the Yamaha WR250F 2015?

To adjust the chain tension, place the bike on a stand, locate the chain adjusters on the swingarm, and use a wrench to adjust. Ensure there is about 1.2 to 1.6 inches of slack at the mid-point of the chain.