Contents

- GENERAL INFORMATION
  - SAFETY INFORMATION
  - LOCATION OF IMPORTANT LABELS
  - DESCRIPTION
  - IDENTIFICATION
  - INCLUDED PARTS
  - IMPORTANT INFORMATION
  - BASIC SERVICE INFORMATION
  - SPECIAL TOOLS
  - INSTRUMENT AND 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
  - CABLE ROUTING DIAGRAM
- PERIODIC CHECKS AND ADJUSTMENTS
  - PERIODIC MAINTENANCE
  - PRE-OPERATION INSPECTION AND MAINTENANCE
  - ENGINE
  - CHASSIS
  - ELECTRICAL SYSTEM
- CHASSIS
  - GENERAL CHASSIS
  - FRONT WHEEL
  - REAR WHEEL
  - FRONT BRAKE
  - REAR BRAKE
  - HANDLEBAR
  - FRONT FORK
  - STEERING HEAD
  - REAR SHOCK ABSORBER ASSEMBLY
  - SWINGARM
  - CHAIN DRIVE
- ENGINE
  - LUBRICATION SYSTEM CHART AND DIAGRAMS
  - ENGINE REMOVAL
  - CAMSHAFT
  - CYLINDER HEAD
  - VALVES AND VALVE SPRINGS
  - CYLINDER AND PISTON
  - GENERATOR
  - STARTER CLUTCH
  - ELECTRIC STARTER
  - CLUTCH
  - SHIFT SHAFT
  - OIL PUMP
  - CRANKCASE
  - CRANKSHAFT AND BALANCER SHAFT
  - TRANSMISSION
- COOLING SYSTEM
  - COOLING SYSTEM DIAGRAMS
  - RADIATOR
  - WATER PUMP
- FUEL SYSTEM
  - FUEL TANK
  - THROTTLE BODY
- ELECTRICAL SYSTEM
  - IGNITION SYSTEM
  - ELECTRIC STARTING SYSTEM
  - CHARGING SYSTEM
  - SIGNALING SYSTEM
  - LIGHTING SYSTEM
  - COOLING SYSTEM
  - FUEL INJECTION SYSTEM
  - FUEL PUMP SYSTEM
  - ELECTRICAL COMPONENTS
- TROUBLESHOOTING
  - TROUBLESHOOTING
  - SELF-DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE
- TUNING
  - CHASSIS
- WIRING DIAGRAM

Yamaha WR450FL WR450F 2020 Owner's Manual

Pages 404

Year 2020

Language(s)

of 404

Yamaha WR450FL WR450F 2020 Specification

The Yamaha WR450FL WR450F 2020 is a high-performance off-road motorcycle designed for both competitive and recreational trail riding. This model is powered by a 450cc liquid-cooled, DOHC, four-stroke engine, which provides robust torque and horsepower across a wide RPM range. The engine features an advanced fuel injection system that ensures optimal fuel delivery and efficiency. The WR450FL WR450F 2020 is equipped with a 5-speed wide-ratio transmission that allows for smooth and versatile gear shifts, making it adept at handling various terrains and riding conditions.

The chassis of the WR450FL WR450F 2020 is constructed from a lightweight aluminum bilateral beam frame, which contributes to the bike's excellent handling and maneuverability. The suspension system includes fully adjustable KYB forks and a KYB rear shock, offering superior shock absorption and stability on rugged trails. The motorcycle also boasts a high ground clearance and a durable skid plate to protect the engine and frame from impact.

The braking system consists of hydraulic disc brakes with a 270mm front disc and a 245mm rear disc, providing reliable stopping power. The WR450FL WR450F 2020 incorporates a compact, multifunctional LCD instrument display that offers essential information such as speed, fuel level, and maintenance alerts. Additionally, the bike features an electric start system complemented by a kick-start backup, ensuring reliability in various conditions.

Ergonomically, the WR450FL WR450F 2020 is designed for rider comfort and control, with a narrow seat, adjustable handlebar positions, and a compact body design that allows for easy movement. With a dry weight of approximately 262 pounds, the motorcycle strikes a balance between rugged durability and agile performance. The Yamaha WR450FL WR450F 2020 is a well-rounded off-road machine, suitable for riders seeking both competitive edge and recreational enjoyment.

Yamaha WR450FL WR450F 2020 F.A.Q.

What is the recommended oil type and capacity for the Yamaha WR450F 2020?

The recommended oil type for the Yamaha WR450F 2020 is 10W-40, and the oil capacity is approximately 1.2 liters when changing the oil filter.

How often should I clean the air filter on my WR450F 2020?

It is advised to clean the air filter after every ride in dusty conditions or every 20-30 hours of operation under normal conditions.

What is the break-in procedure for a new Yamaha WR450F 2020?

For the first 600 miles (approximately 10 hours), avoid full-throttle starts and rapid acceleration, and vary the engine speed. This helps to ensure the engine components wear evenly.

How do I adjust the suspension on the WR450F 2020 for different terrains?

To adjust the suspension, consult the owner's manual for the specific settings. Generally, adjust the fork and shock settings to softer settings for rocky terrain and firmer settings for smooth, fast trails.

What should I do if my WR450F 2020 won't start?

Check the basics first: ensure the fuel is fresh, the battery is charged, and the spark plug is clean and properly gapped. Also, check for any error codes using the onboard diagnostic system.

How do I change the coolant on the Yamaha WR450F 2020?

To change the coolant, first, ensure the engine is cool. Remove the radiator cap, then open the radiator drain bolt and let the coolant drain completely. Refill with a 50/50 mixture of antifreeze and distilled water, then bleed the system of air by running the engine with the radiator cap off.

What is the correct tire pressure for the WR450F 2020?

The recommended tire pressure for the WR450F 2020 is typically around 12-15 psi for off-road use. Adjust the pressure according to the terrain and your riding style.

How do I perform a chain adjustment on my WR450F 2020?

To adjust the chain, place the bike on a stand, loosen the axle nut, and adjust the chain tension using the adjuster bolts on the swingarm. Ensure there is about 1.2-1.6 inches of slack at the midpoint of the chain.

Why is my WR450F 2020 overheating and how can I prevent it?

Overheating can be caused by low coolant levels, a dirty radiator, or a faulty thermostat. Ensure the cooling system is full, the radiator is clean, and the thermostat is functioning properly. Use a high-quality coolant and consider fitting additional cooling fans if riding in extreme conditions.

What regular maintenance should I perform on my Yamaha WR450F 2020?

Regular maintenance includes changing the oil every 10 hours, cleaning and lubricating the chain, checking and adjusting the valve clearance every 600 miles, and inspecting the brakes, tires, and suspension components regularly.