Contents

- GENERAL INFORMATION
  - LOCATION OF IMPORTANT LABELS
  - DESCRIPTION
  - CONSUMER INFORMATION
  - INCLUDED PARTS
  - IMPORTANT INFORMATION
  - CHECKING OF CONNECTION
  - SPECIAL TOOLS
  - CONTROL FUNCTIONS
  - MULTI-FUNCTION DISPLAY
  - STARTING AND BREAK-IN
  - TORQUE-CHECK POINTS
  - CLEANING AND STORAGE
- SPECIFICATIONS
  - GENERAL SPECIFICATIONS
  - MAINTENANCE SPECIFICATIONS
  - TIGHTENING TORQUES
  - 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 ELEMENT AND WATER PUMP
  - BALANCER
  - OIL PUMP
  - KICK SHAFT 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
  - THROTTLE POSITION SENSOR SYSTEM
  - LIGHTING SYSTEM
  - SIGNALING SYSTEM

Yamaha WR450FZ 2010 Owner's Manual

Pages 312

Year 2010

Language(s)

of 312

Yamaha WR450FZ 2010 Specification

The Yamaha WR450FZ 2010 is a high-performance off-road motorcycle engineered for endurance and agility. It features a robust 449cc liquid-cooled, 4-stroke, DOHC engine. This powertrain is complemented by a 5-valve titanium configuration that enhances efficiency and power delivery. The engine's fuel is managed by a Keihin FCR-MX39 carburetor, ensuring optimal fuel-air mixture for various riding conditions.

The WR450FZ employs a 5-speed wide-ratio transmission, allowing flexibility across diverse terrains. The bike's frame is constructed from lightweight aluminum, delivering a perfect balance between strength and weight. Suspension duties are handled by a fully adjustable 48mm KYB fork at the front and a fully adjustable KYB shock at the rear, both providing excellent handling and comfort over rugged landscapes.

Braking is managed by a 250mm hydraulic single-disc brake at the front and a 245mm hydraulic single-disc brake at the rear, offering reliable stopping power. The bike rolls on 21-inch front and 18-inch rear wheels, equipped with off-road tires designed for superior traction and durability.

The WR450FZ also boasts a digital enduro race computer, displaying essential information such as speed, distance, and maintenance intervals. With a fuel capacity of 8.0 liters (2.11 gallons) and a dry weight of approximately 123 kg (271 lbs), the motorcycle is built for long rides without compromising maneuverability.

For added convenience, the WR450FZ includes an electric start system along with a backup kick-start mechanism. This combination ensures reliable ignition in all conditions. The Yamaha WR450FZ 2010 is thus a well-rounded machine, combining advanced engineering with practical features to cater to serious off-road enthusiasts.

Yamaha WR450FZ 2010 F.A.Q.

What type of oil is recommended for the Yamaha WR450FZ 2010?

The Yamaha WR450FZ 2010 typically requires a high-quality 10W-40 or 10W-50 4-stroke motorcycle oil. Always check your owner's manual for specific recommendations.

How often should I change the air filter on my WR450FZ 2010?

The air filter should be checked and cleaned every 10-20 hours of use, and replaced if necessary. More frequent maintenance may be required in dusty conditions.

What are common starting issues with the WR450FZ 2010 and how can I troubleshoot them?

Common starting issues can include a dead battery, clogged fuel lines, or a fouled spark plug. Check each of these components and ensure the electric start system is functioning properly.

How do I adjust the suspension on the Yamaha WR450FZ 2010?

To adjust the suspension, use the compression and rebound adjusters on the front forks and the rear shock. Consult the owner's manual for recommended settings based on your weight and riding style.

What is the proper chain tension for the WR450FZ 2010?

The chain tension should be adjusted so that there is approximately 30-40mm of slack at the tightest point when measured at the midpoint of the chain.

What should I do if the WR450FZ 2010 is overheating?

If your bike is overheating, check the coolant level, ensure the radiator is clean, and verify that the water pump is functioning. Avoid idling for long periods in hot conditions.

How can I improve the fuel efficiency of my WR450FZ 2010?

To improve fuel efficiency, ensure your bike is well-maintained, the air filter is clean, and the tires are properly inflated. Riding smoothly and avoiding aggressive acceleration can also help.

What is the recommended tire pressure for the Yamaha WR450FZ 2010?

The recommended tire pressure is typically around 15 psi for off-road use, but this can vary based on terrain and personal preference. Always check your owner's manual for the exact specifications.

How do I perform a valve clearance check on the WR450FZ 2010?

To perform a valve clearance check, remove the valve cover, rotate the engine to top dead center on the compression stroke, and use feeler gauges to measure the clearance. Adjust if necessary according to the service manual.

What could cause the WR450FZ 2010 to have poor throttle response?

Poor throttle response could be due to a dirty air filter, clogged fuel injector, or incorrect ECU settings. Ensure all components are clean and functioning properly.