Contents

- GENERAL INFORMATION
  - LOCATION OF IMPORTANT LABELS
  - DESCRIPTION
  - IDENTIFICATION
  - 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
- WR450FH 2017 WIRING DIAGRAM

Yamaha WR450FH 2018 Owner's Manual

Pages 424

Year 2018

Language(s)

of 424

Yamaha WR450FH 2018 Specification

The Yamaha WR450FH 2018 is a high-performance off-road motorcycle designed to deliver superior power, handling, and durability. At its core, the WR450FH features a 449cc liquid-cooled, DOHC, four-stroke engine that provides robust torque and acceleration, ideal for tackling challenging terrains. The engine is paired with a wide-ratio five-speed transmission, ensuring smooth and adaptable power delivery across various riding conditions.

The motorcycle's chassis is constructed from a lightweight aluminum frame, enhancing rigidity and maneuverability. The suspension system includes fully adjustable KYB® spring-type forks with speed-sensitive damping and a linkage-type rear shock, offering exceptional control and comfort over rough trails. The WR450FH also comes equipped with a large-capacity radiator and a high-flow air filter, which work together to maintain optimal engine performance even under strenuous conditions.

For braking, the WR450FH features a large front disc brake with a Nissin twin-piston caliper and a rear disc brake, providing reliable stopping power. The 18-inch rear and 21-inch front wheels are fitted with off-road tires designed for maximum traction and durability. The motorcycle's ergonomics are tailored for off-road riding, with a narrow seat, tapered handlebars, and adjustable handlebar mounts, ensuring rider comfort and control.

Additionally, the WR450FH is equipped with an advanced electric start system and a lightweight lithium-ion battery, simplifying ignition and reducing overall weight. The enduro-specific digital instrumentation provides essential information such as speed, distance, and maintenance reminders. With its combination of advanced engineering, durable components, and rider-focused design, the Yamaha WR450FH 2018 stands out as a top choice for serious off-road enthusiasts.

Yamaha WR450FH 2018 F.A.Q.

How do I adjust the suspension on my Yamaha WR450FH 2018?

To adjust the suspension, locate the adjustment knobs on the fork and shock absorber. Refer to the owner's manual for the recommended settings based on your riding conditions and weight. Make adjustments incrementally and test ride to feel the changes.

What type of engine oil should I use for my Yamaha WR450FH 2018?

Use a high-quality 4-stroke motorcycle engine oil with a viscosity of 10W-40. Ensure it meets JASO MA standards for optimal performance and protection.

How often should I clean the air filter on my WR450FH?

Clean the air filter after every 300-500 miles of riding or more frequently if riding in dusty conditions. Use a mild detergent and let it dry completely before re-oiling and reinstalling.

What is the recommended tire pressure for a Yamaha WR450FH 2018?

The recommended tire pressure for the WR450FH is typically around 15 psi for both front and rear tires, but adjust according to terrain and riding style.

How do I troubleshoot starting issues with my WR450FH?

Check the battery charge, ensure fuel is reaching the engine, and inspect the spark plug for wear or fouling. If the issue persists, consult a professional mechanic.

What regular maintenance should I perform on my Yamaha WR450FH 2018?

Regular maintenance includes oil changes every 1,000 miles, checking and tightening bolts, inspecting brake pads, and lubricating the chain every 200 miles.

How do I adjust the clutch on the WR450FH?

To adjust the clutch, locate the adjustment screw on the clutch lever. Turn it to increase or decrease the free play until the clutch engages smoothly.

What should I do if my WR450FH overheats?

If the bike overheats, stop immediately and let it cool down. Check coolant levels and ensure the radiator is not blocked. Avoid idling for extended periods in hot conditions.

How do I replace the spark plug on my Yamaha WR450FH 2018?

Remove the seat and fuel tank to access the spark plug. Use a spark plug socket to remove the old plug, check the gap on the new plug, and install it. Reassemble and test the engine.

How can I improve the fuel efficiency of my WR450FH?

To improve fuel efficiency, maintain proper tire pressure, perform regular engine maintenance, and avoid aggressive acceleration. Consider adjusting the fuel mapping if you have an aftermarket ECU.