Contents

TABLE OF 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
  - 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
- 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
- WR450FF 2015 WIRING DIAGRAM

Yamaha WR450FF 2015 Owner's Manual

Pages 398

Year 2015

Language(s)

of 398

Yamaha WR450FF 2015 Specification

The Yamaha WR450F 2015 is an advanced off-road motorcycle designed to deliver robust performance and superior handling in various terrains. It is powered by a 449cc liquid-cooled, DOHC, four-stroke engine, which features a five-valve cylinder head for optimal intake and exhaust efficiency. The engine is paired with a five-speed wide-ratio transmission, offering versatility for different riding conditions, from tight trails to open paths. The fuel delivery system utilizes a Keihin 44mm throttle body fuel injection, ensuring precise fuel metering and optimal power delivery.

The chassis of the WR450F is designed with a lightweight aluminum frame that provides excellent rigidity and balance, contributing to improved handling and maneuverability. The suspension system includes fully adjustable KYB speed-sensitive forks at the front and a fully adjustable KYB shock at the rear, offering customizable settings to suit various riding styles and conditions. The braking system features a 250mm disc at the front and a 245mm disc at the rear, providing reliable stopping power.

The WR450F 2015 also includes an electric start system for convenience, complemented by a kickstarter for backup. The bike's ergonomics are designed for rider comfort and control, with a narrow seat, slim bodywork, and a large fuel tank capacity of 2.1 gallons, ideal for extended rides. The 18-inch rear wheel and 21-inch front wheel are fitted with durable off-road tires to handle rugged surfaces.

Additionally, the WR450F comes equipped with a digital enduro computer that displays essential information such as speed, distance, and time, enhancing the rider’s ability to monitor performance metrics. Overall, the Yamaha WR450F 2015 stands out as a highly capable and versatile off-road motorcycle, engineered to meet the demands of serious trail riders.

Yamaha WR450FF 2015 F.A.Q.

How can I adjust the suspension settings for different terrains on my Yamaha WR450F 2015?

To adjust the suspension for different terrains, refer to the owner's manual for baseline settings. For softer terrain, adjust the suspension to a softer setting by decreasing compression and rebound damping. For harder terrain, increase these settings for a stiffer ride. Always adjust in small increments and test ride to find the optimal setup.

What is the recommended oil change interval for the Yamaha WR450F 2015?

The recommended oil change interval for the Yamaha WR450F 2015 is every 15 hours of use or every 1,000 kilometers, whichever comes first. Frequent oil changes are crucial to maintain engine performance and longevity.

How do I troubleshoot a starting problem with my Yamaha WR450F 2015?

If your WR450F is having trouble starting, check the battery charge and connections first. Ensure the fuel is fresh and the fuel lines are not clogged. Verify the spark plug condition and replace if necessary. Also, check the kill switch and ignition wiring for any faults.

What type of fuel is recommended for the Yamaha WR450F 2015?

The Yamaha WR450F 2015 is designed to run on unleaded gasoline with a minimum octane rating of 91. Using higher octane fuel can enhance performance and prevent knocking, especially in high-performance riding conditions.

How should I clean and maintain the air filter on my Yamaha WR450F 2015?

Remove the air filter and wash it gently with warm, soapy water. Rinse thoroughly and let it dry completely before applying air filter oil. Reinstall the filter ensuring it is seated properly to prevent dirt ingress. Regular cleaning is essential, especially after dusty rides.

What are the common electrical issues in the Yamaha WR450F 2015 and how to fix them?

Common electrical issues can include dead battery, faulty connections, or malfunctioning lights. Ensure the battery is fully charged and terminals are clean. Inspect wiring for any signs of wear or damage. Replace any blown fuses and check connectors for corrosion.

How do I adjust the chain tension on the Yamaha WR450F 2015?

To adjust the chain tension, place the bike on a stand and measure the slack in the chain at the midpoint. Loosen the axle nut and adjust the chain adjusters equally on both sides until the slack is within the specified range (usually 30-40mm). Tighten the axle nut securely.

What is the procedure for checking valve clearances on the Yamaha WR450F 2015?

To check valve clearances, remove the seat, fuel tank, and valve cover. Using a feeler gauge, measure the clearance between the rocker arm and the valve tip. Compare with specifications in the service manual. If adjustment is needed, shim the valves accordingly.

How can I improve the performance of my Yamaha WR450F 2015?

To improve performance, consider installing an aftermarket exhaust system, adjusting the ECU settings, and optimizing the suspension. Regular maintenance like air filter cleaning, oil changes, and spark plug replacements also help in maintaining peak performance.

What are the recommended tire pressures for the Yamaha WR450F 2015?

For the Yamaha WR450F 2015, the recommended tire pressure is typically around 15 psi for the front tire and 15-18 psi for the rear, depending on terrain and load conditions. Adjust pressures accordingly for off-road or high-speed conditions.