Yamaha WR25XX C WR250X 2008 Owner's Manual

To break in the engine, ride at varying speeds and avoid full throttle for the first 600 miles. Gradually increase throttle use after this period.
Use a high-quality 4-stroke motorcycle oil with a viscosity of 10W-40 or 10W-50, depending on your climate.
Change the oil every 3,000 miles or 3 months, whichever comes first, to ensure optimal engine performance.
The recommended tire pressure is typically 22 psi for the front tire and 25 psi for the rear tire. Always check your owner’s manual for specifics.
Check the battery charge, inspect the fuel system, ensure the kill switch is off, and verify that the spark plug is functioning properly.
For improved handling, adjust the preload, compression, and rebound settings based on your weight and riding style. Refer to the manual for detailed instructions.
If overheating occurs, check the coolant level, ensure the radiator is clean and unobstructed, and inspect the thermostat and fan operation.
Regularly clean and lubricate the chain every 300-600 miles. Check for proper tension and adjust as needed.
Common issues include faulty connections or a dead battery. Check all connections for corrosion and test the battery voltage. Replace if necessary.
To replace the air filter, remove the seat, open the airbox, and carefully replace the old filter with a new one. Ensure a proper seal to prevent dirt ingress.