Contents

- GENERAL INFORMATION
  - DESCRIPTION
  - MACHINE IDENTIFICATION
  - IMPORTANT INFORMATION
  - CHECKING OF CONNECTION
  - SPECIAL TOOLS
  - CONTROL FUNCTIONS
  - MULTI-FUNCTION DISPLAY
  - FUEL
  - STARTING AND BREAK-IN
  - TORQUE-CHECK POINTS
  - CLEANING AND STORAGE
- SPECIFICATIONS
  - GENERAL SPECIFICATIONS
  - MAINTENANCE SPECIFICATIONS
  - GENERAL TORQUE SPECIFICATIONS
  - DEFINITION OF UNITS
  - LUBRICATION DIAGRAMS
  - CABLE ROUTING DIAGRAM
- REGULAR INSPECTION AND ADJUSTMENTS
  - PERIODIC MAINTENANCE CHART FOR THE EMISSION CONTROL SYSTEM
  - GENERAL MAINTENANCE AND LUBRICATION CHART
  - MAINTENANCE INTERVALS FOR COMPETITION USE
  - PRE-OPERATION INSPECTION AND MAINTENANCE
  - ENGINE
  - CHASSIS
  - ELECTRICAL
- TUNING
  - CHASSIS
- ENGINE
  - RADIATOR
  - CARBURETOR
  - AIR INDUCTION SYSTEM
  - CAMSHAFTS
  - CYLINDER HEAD
  - VALVES AND VALVE SPRINGS
  - CYLINDER AND PISTON
  - CLUTCH
  - OIL FILTER, WATER PUMP AND CRANKCASE COVER (RIGHT)
  - BALANCER
  - OIL PUMP
  - KICK AXLE AND SHIFT SHAFT
  - AC MAGNETO AND STARTER CLUTCH
  - ENGINE REMOVAL
  - CRANKCASE AND CRANKSHAFT
  - TRANSMISSION, SHIFT CAM AND SHIFT FORK
- CHASSIS
  - FRONT WHEEL AND REAR WHEEL
  - FRONT BRAKE AND REAR BRAKE
  - FRONT FORK
  - HANDLEBAR
  - STEERING
  - SWINGARM
  - REAR SHOCK ABSORBER
- ELECTRICAL
  - ELECTRICAL COMPONENTS AND WIRING DIAGRAM
  - IGNITION SYSTEM
  - ELECTRIC STARTING SYSTEM
  - CHARGING SYSTEM
  - TPS (THROTTLE POSITION SENSOR) SYSTEM
  - LIGHTING SYSTEM
  - SIGNALING SYSTEM

Yamaha WR450FW 2007 Owner's Manual

Pages 358

Year 2007

Language(s)

of 358

Yamaha WR450FW 2007 Specification

The Yamaha WR450FW 2007 is a robust off-road motorcycle engineered for high performance and durability. It features a liquid-cooled, four-stroke, 449cc engine designed to deliver exceptional power and torque, ensuring superior performance across a variety of terrains. The engine is complemented by a five-speed transmission system, allowing for smooth and efficient gear transitions, enhancing the bike's versatility for both slow technical trails and high-speed tracks.

Built on an aluminum frame, the WR450FW 2007 offers a lightweight yet sturdy structure, contributing to improved handling and maneuverability. The suspension system includes fully adjustable front and rear shocks, providing excellent stability and comfort by absorbing impacts from rough surfaces. The front suspension consists of 48mm forks with 11.8 inches of travel, while the rear suspension features a monocross system with 12.2 inches of travel, both designed to optimize ride quality and control.

The braking system incorporates powerful disc brakes on both the front and rear wheels, ensuring reliable stopping power under various conditions. The motorcycle is equipped with 21-inch front and 18-inch rear tires, specifically chosen for their ability to provide optimal traction and stability on off-road trails.

Additional features of the WR450FW 2007 include an electric start system for ease of use, along with a digital multi-function display that provides essential information such as speed, distance, and maintenance reminders. The bike also boasts a fuel capacity of 2.1 gallons, which is sufficient for extended rides without frequent refueling.

Overall, the Yamaha WR450FW 2007 is designed for serious off-road enthusiasts, combining a powerful engine, advanced suspension, and a durable frame to deliver a well-rounded and reliable off-road riding experience.

Yamaha WR450FW 2007 F.A.Q.

How often should I change the oil in my 2007 Yamaha WR450FW?

For optimal performance, change the engine oil every 600 miles or 15 hours of riding. Always check the oil level before each ride.

What type of oil is recommended for the WR450FW 2007 model?

Yamaha recommends using 10W-40 or 20W-50 Yamalube 4, a high-quality, 4-stroke engine oil, for the WR450FW 2007.

How can I adjust the suspension settings for different terrains?

To adjust the suspension, refer to the owner's manual for baseline settings. Use the compression and rebound adjusters on the forks and shock to fine-tune for different terrains. Softer settings for rough terrain and firmer settings for smooth, fast tracks.

What is the recommended tire pressure for the WR450FW?

The recommended tire pressure for the WR450FW is 15 psi for both the front and rear tires. Adjust the pressure slightly based on terrain and rider preference.

How do I troubleshoot starting issues with my WR450FW?

If you're experiencing starting issues, check the battery voltage, inspect the spark plug for wear or fouling, ensure the fuel is fresh, and verify that the kill switch is in the correct position.

What regular maintenance should be performed on the WR450FW?

Regular maintenance includes oil and filter changes, air filter cleaning, chain lubrication and adjustment, checking brake fluid levels, and inspecting tires and suspension components.

How can I improve the performance of my WR450FW?

To improve performance, consider upgrading the exhaust system, re-jetting the carburetor, and installing a high-performance air filter. Regular maintenance and tuning are also crucial.

What should I do if the engine overheats?

If the engine overheats, stop riding immediately and allow it to cool down. Check coolant levels, inspect for radiator blockages, and ensure the cooling system is functioning properly.

How do I adjust the chain tension on the WR450FW?

To adjust the chain tension, place the bike on a stand, loosen the axle nut, and use the chain adjusters to set the correct slack. Refer to the manual for proper slack measurements.

What spark plug type is recommended for the 2007 WR450FW?

The recommended spark plug for the 2007 Yamaha WR450FW is an NGK CR8E or DENSO U24ESR-N. Ensure the gap is set to the specifications outlined in the owner's manual.