Contents

- GENERAL INFORMATION
  - LOCATION OF IMPORTANT LABELS
  - DESCRIPTION
  - CONSUMER INFORMATION
  - INCLUDED PARTS
  - IMPORTANT INFORMATION
  - CHECKING OF CONNECTION
  - SPECIAL TOOLS
  - CONTROL FUNCTIONS
  - STARTING AND BREAK-IN
  - TORQUE-CHECK POINTS
  - MAINTENANCE AFTER BREAK-IN
  - CLEANING AND STORAGE
- SPECIFICATIONS
  - GENERAL SPECIFICATIONS
  - MAINTENANCE SPECIFICATIONS
  - TIGHTENING TORQUES
  - CABLE ROUTING DIAGRAM
- REGULAR INSPECTION AND ADJUSTMENTS
  - MAINTENANCE INTERVALS
  - PRE-OPERATION INSPECTION AND MAINTENANCE
  - ENGINE
  - CHASSIS
  - ELECTRICAL
- ENGINE
  - SEAT, FUEL TANK AND SIDE COVERS
  - EXHAUST PIPE AND SILENCER
  - RADIATOR
  - CARBURETOR AND REED VALVE
  - CYLINDER HEAD, CYLINDER AND PISTON
  - CLUTCH
  - KICK SHAFT AND SHIFT SHAFT
  - YPVS GOVERNOR
  - WATER PUMP
  - CDI MAGNETO
  - 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
  - SOLENOID VALVE SYSTEM
  - THROTTLE POSITION SENSOR SYSTEM
- TUNING
  - ENGINE
  - CHASSIS

Yamaha YZ250L2, YZ250XL YZ250, YZ250X 2020 Owner's Manual

Yamaha YZ250L2, YZ250XL YZ250, YZ250X 2020 manual cover

Pages 252

Year 2020

Language(s)

of 252

Yamaha YZ250L2, YZ250XL YZ250, YZ250X 2020 Specification

The Yamaha YZ250L2, YZ250XL, YZ250, and YZ250X 2020 models are high-performance motocross bikes engineered for competitive off-road racing and recreational trail riding. They are equipped with a 249cc liquid-cooled, two-stroke engine that delivers a potent mix of power and agility. The engine features Yamaha's proprietary YPVS (Yamaha Power Valve System) which optimizes power delivery across the RPM range, providing a robust performance whether accelerating out of corners or navigating technical sections.

The chassis is constructed from lightweight aluminum, contributing to the bike's overall nimbleness and handling precision. The frame geometry is designed to offer a balanced and stable ride, even at high speeds. The suspension system includes fully adjustable KYB® spring-type forks at the front and a KYB® rear shock, ensuring excellent responsiveness and rider comfort over varied terrain.

Braking is managed by wave-style disc brakes, which offer superior stopping power and heat dissipation. The front disc measures 270mm while the rear is 245mm, providing reliable performance in all conditions. The bikes are fitted with Dunlop® Geomax MX3S tires, chosen for their exceptional grip and durability.

Ergonomically, the Yamaha YZ250 series focuses on rider comfort and control. The adjustable handlebar mounts and slim fuel tank design allow for a natural riding posture, while the seat provides excellent support. The bodywork is both functional and aesthetically pleasing, designed to facilitate easy movement and quick maintenance.

The YZ250X variant is tailored specifically for cross-country racing, featuring an 18-inch rear wheel, wide-ratio transmission, and a sidestand, making it versatile for diverse off-road conditions. Overall, the Yamaha YZ250 series for 2020 combines advanced engineering, innovative features, and rider-focused design to deliver outstanding performance in both competitive and recreational environments.

Yamaha YZ250L2, YZ250XL YZ250, YZ250X 2020 F.A.Q.

What is the recommended engine oil for the Yamaha YZ250 series?

The recommended engine oil for the Yamaha YZ250 series is a high-quality 2-stroke engine oil with a JASO FC or FD rating. Always refer to your owner's manual for specific recommendations.

How often should I clean the air filter on my YZ250X?

It is advisable to clean the air filter of your YZ250X after every ride, especially in dusty conditions, to ensure optimal performance and engine protection.

What is the correct tire pressure for the YZ250L2?

The recommended tire pressure for the YZ250L2 is typically around 12-14 psi for the front tire and 12-14 psi for the rear tire. Always check the manual for specific settings.

How do I adjust the suspension on my Yamaha YZ250XL?

To adjust the suspension on your YZ250XL, use the adjusters located at the top and bottom of the forks and on the shock. Refer to the manual for detailed instructions and recommended settings based on your weight and riding conditions.

What fuel type is best for the YZ250 2020 model?

The YZ250 2020 model is designed to run on unleaded gasoline with a minimum octane rating of 91. Using high-quality fuel helps maintain engine performance.

How do I troubleshoot starting issues with my YZ250X?

If your YZ250X is having starting issues, check the spark plug for fouling, ensure the fuel is fresh, and inspect the air filter for clogs. If issues persist, consider consulting a professional mechanic.

What maintenance should be performed after each ride on the YZ250 series?

After each ride, clean the bike thoroughly, inspect and clean the air filter, check tire pressure, and lubricate the chain to ensure your YZ250 series bike remains in good condition.

How do I replace the brake pads on my YZ250XL?

To replace the brake pads on your YZ250XL, remove the caliper bolts, take out the old pads, insert new pads, and reattach the caliper. Ensure everything is tightened to the manufacturer's specifications.

Can I use synthetic oil in my YZ250 2020?

Yes, you can use synthetic 2-stroke oil in your YZ250 2020, as it offers superior lubrication and engine protection compared to conventional oils.

What are the torque specifications for the cylinder head bolts on a YZ250L2?

The torque specification for the cylinder head bolts on a YZ250L2 is typically around 27 lb-ft (37 Nm). Always refer to the service manual for precise values and torque sequence.