Contents

- GENERAL INFORMATION
  - LOCATION OF IMPORTANT LABELS
  - DESCRIPTION
  - CONSUMER INFORMATION
  - FEATURES
  - INCLUDED PARTS
  - IMPORTANT INFORMATION
  - BASIC SERVICE INFORMATION
  - SPECIAL TOOLS
  - CONTROL FUNCTIONS
  - MULTI-FUNCTION DISPLAY
  - STARTING AND 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
- PERIODIC CHECKS AND ADJUSTMENTS
  - PERIODIC MAINTENANCE
- 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
  - FUEL INJECTION SYSTEM
  - FUEL PUMP SYSTEM
  - ELECTRICAL COMPONENTS
- TROUBLESHOOTING
  - TROUBLESHOOTING
- WR450FB 2012 WIRING DIAGRAM

Yamaha WR450FB 2012 Owner's Manual

Pages 392

Year 2012

Language(s)

of 392

Yamaha WR450FB 2012 Specification

The Yamaha WR450FB 2012 is a high-performance off-road motorcycle engineered for endurance and versatility. This model is equipped with a robust 449cc, liquid-cooled, DOHC, 4-stroke engine, optimized for a balanced combination of power and control. The engine features a 12.5:1 compression ratio, which enhances efficiency and performance under various riding conditions. The WR450FB is fitted with a five-valve cylinder head that improves air intake and exhaust flow, contributing to its impressive power output and torque characteristics.

The bike incorporates a lightweight aluminum bilateral beam frame, which provides excellent rigidity and stability, crucial for tackling challenging terrains. The suspension system includes fully adjustable KYB speed-sensitive front forks and a rear shock absorber, allowing for fine-tuning to suit different riding preferences and conditions. The WR450FB also features a reliable electric start system complemented by a kickstarter for added convenience.

Braking is managed by wave-style disc brakes, offering superior stopping power and heat dissipation. The motorcycle is equipped with 21-inch front and 18-inch rear wheels, shod with off-road tires designed for optimal traction and durability.

Fuel capacity is 7.2 liters, ensuring extended riding periods without frequent refueling. The ergonomically designed seat and handlebar position provide enhanced comfort and control for the rider. Additionally, the WR450FB incorporates an advanced digital enduro computer that displays essential information such as speed, distance, and time, aiding in navigation and performance tracking.

Weighing in at approximately 123 kg (271 lbs), the Yamaha WR450FB 2012 strikes a balance between durability and agility, making it a formidable choice for both competitive and recreational riders. This model exemplifies Yamaha's commitment to innovation and quality in the off-road motorcycle segment.

Yamaha WR450FB 2012 F.A.Q.

How do I properly break in the engine of my Yamaha WR450FB 2012?

To break in the engine, start by warming it up for a few minutes. For the first 100 miles, keep the engine under half throttle and avoid high RPMs. Gradually increase throttle but avoid full throttle until you reach 600 miles. Change the oil after the first 100 miles to remove metal particles from the break-in process.

What are the recommended oil specifications for the Yamaha WR450FB 2012?

The recommended oil for the Yamaha WR450FB 2012 is a 10W-40 or 10W-50 fully synthetic motorcycle oil, designed for wet clutches. Ensure the oil meets JASO MA standards for optimal performance.

How often should I check and adjust the valve clearance on my WR450FB 2012?

Valve clearance should be checked every 600 miles. Adjustments might not be necessary every time, but checking regularly ensures optimal engine performance and longevity.

What is the correct tire pressure for the Yamaha WR450FB 2012?

The recommended tire pressure is 15 psi for the front tire and 15 psi for the rear tire when riding off-road. For on-road use, you may increase the pressure to 18 psi for better performance.

How can I troubleshoot starting issues on my WR450FB 2012?

If the bike won't start, check the battery charge and connections first. Ensure the fuel is fresh and the fuel valve is open. Inspect the spark plug for wear or carbon buildup, and replace if necessary. Ensure the kill switch is in the 'run' position.

What maintenance should be performed after a muddy ride on the WR450FB 2012?

After a muddy ride, clean the bike thoroughly to remove mud and debris. Check the air filter and clean or replace it if necessary. Lubricate the chain and inspect it for wear. Also, check the brakes and suspension for any debris that could affect performance.

How do I adjust the suspension on my WR450FB 2012 for different terrains?

For softer terrain, decrease the compression damping to allow more fork and shock movement. For hard terrain, increase the compression damping for firmer suspension. Always adjust in small increments and test ride to find the best settings for your riding style and terrain.

What is the fuel capacity of the Yamaha WR450FB 2012?

The fuel tank capacity of the Yamaha WR450FB 2012 is approximately 2.1 gallons (8 liters), which provides a good balance between weight and range for off-road adventures.

How can I improve the fuel efficiency of my Yamaha WR450FB 2012?

To improve fuel efficiency, ensure regular maintenance such as air filter cleaning, spark plug replacement, and proper tire inflation. Riding at a steady pace and avoiding rapid acceleration can also help conserve fuel.

What are common electrical issues with the WR450FB 2012 and how can they be resolved?

Common electrical issues include faulty connections and battery problems. Inspect wiring harnesses for loose or corroded connections. Ensure the battery terminals are clean and tight. If electrical components fail, check fuses and replace any that are blown.