Yamaha YZ250M2, YZ250XM YZ250, YZ250X 2021 Owner's Manual

Yamaha YZ250M2, YZ250XM YZ250, YZ250X 2021 manual cover
Pages 276
Year 2021
Language(s)
English en

Yamaha YZ250M2, YZ250XM YZ250, YZ250X 2021 Specification

The 2021 Yamaha YZ250M2, YZ250XM, YZ250, and YZ250X are high-performance motocross and off-road motorcycles engineered for both competitive and recreational riding. Central to these models is the 249cc liquid-cooled, 2-stroke engine that offers a potent combination of power and agility. Featuring Yamaha’s proprietary Power Valve System (YPVS), the engine delivers a broad range of power, making it suitable for various terrains and riding conditions.

The chassis is constructed from an aluminum frame that provides a balance of rigidity and flexibility, optimizing handling and stability. Both front and rear suspensions are equipped with KYB components, including a fully adjustable fork and a rear shock with compression and rebound damping adjustments, ensuring superior shock absorption and rider comfort.

Braking performance is enhanced by a robust braking system featuring large-diameter disc brakes, providing reliable stopping power. The bikes' ergonomics are designed to accommodate a wide range of riders, with adjustable handlebar positions and a slim seat profile for improved control and ease of movement.

The YZ250X model is tailored specifically for cross-country riding, featuring an 18-inch rear wheel, wide-ratio transmission, and off-road specific tires for enhanced traction and durability. Both the YZ250 and YZ250X are equipped with a large-capacity fuel tank to support extended riding sessions.

Advanced features such as a lightweight exhaust system, reed-valve induction, and a high-performance air filter contribute to the overall efficiency and performance of these motorcycles. The Yamaha YZ250 series maintains its reputation for reliability, agility, and power, making it a preferred choice among enthusiasts and professional riders alike.

In conclusion, the 2021 Yamaha YZ250M2, YZ250XM, YZ250, and YZ250X offer a blend of cutting-edge technology and robust engineering, tailored to meet the demands of both motocross tracks and off-road trails.

Yamaha YZ250M2, YZ250XM YZ250, YZ250X 2021 F.A.Q.

What is the recommended break-in procedure for the Yamaha YZ250?

To properly break in your Yamaha YZ250, start by warming up the engine thoroughly. Ride the bike gently for the first 30 minutes, avoiding full throttle or high RPMs. Gradually increase the engine load over the next hour, varying the RPMs. After about two hours, you can ride normally. Always refer to the owner's manual for specific guidelines.

How do you troubleshoot a Yamaha YZ250 that won't start?

If your YZ250 won't start, check the fuel supply first. Ensure there's fuel in the tank and the fuel valve is open. Next, inspect the spark plug for fouling or wear, and replace it if necessary. Check the air filter for clogs and clean or replace it. Lastly, ensure the kill switch is in the 'Run' position.

What maintenance is required for the Yamaha YZ250's suspension system?

Regularly inspect the forks and shock for leaks and damage. Change the fork oil every 20-30 hours of riding. Check the sag and adjust the suspension settings according to your weight and riding style. Grease the linkage bearings and check for wear or play.

How can I improve the performance of my Yamaha YZ250?

To enhance performance, consider upgrading the exhaust system to a high-performance model. Jetting the carburetor to suit your altitude and riding conditions can improve throttle response. Regularly cleaning the air filter and using high-quality oil can also optimize engine performance.

What tire pressure is recommended for the Yamaha YZ250 in off-road conditions?

For off-road conditions, a tire pressure of 12-14 psi is generally recommended for both front and rear tires on the YZ250. Adjust the pressure slightly based on terrain and rider preference for optimal traction and handling.

How do you adjust the chain tension on a Yamaha YZ250?

To adjust the chain tension, place the bike on a stand and locate the chain adjusters on the swingarm. Loosen the axle nut and adjust the tension by moving the adjusters equally on both sides until you achieve 1.2–1.6 inches of slack in the chain. Tighten the axle nut securely.

What is the oil change interval for a Yamaha YZ250?

It's recommended to change the engine oil every 10 hours of riding or every race, whichever comes first. Always use the manufacturer-recommended oil type and viscosity, and replace the oil filter with each oil change.

How do you clean the air filter on a Yamaha YZ250?

Remove the air filter from the airbox, and wash it with a mild soap and water solution. Rinse thoroughly and allow it to dry completely. Apply air filter oil evenly to the filter, ensuring full coverage. Reinstall the filter securely in the airbox.

What are common signs of clutch wear on a Yamaha YZ250?

Common signs of clutch wear include slipping under load, difficulty shifting gears, a spongy clutch lever feel, and unusual noises when engaging the clutch. Inspect the clutch plates and springs, and replace them if worn.

How do you winterize a Yamaha YZ250 for storage?

To winterize your YZ250, drain the fuel from the tank and carburetor to prevent gumming. Change the engine oil and lubricate all cables and pivot points. Remove the spark plug, add a few drops of oil into the cylinder, and kick the engine over slowly to coat the internals. Store the bike in a cool, dry place.