Yamaha WR25RG, WR25RGC WR250R 2016 Owner's Manual
![Yamaha WR25RG, WR25RGC WR250R 2016 manual cover](/images/2f9b9defb8bc39730c6e5857/thumbs/thumb175x175.webp)
The recommended oil type for the Yamaha WR250R 2016 is SAE 10W-40, and the oil capacity is approximately 1.5 liters (1.6 US qt) when the oil filter is replaced.
The air filter should be checked and cleaned every 3,000 km (1,900 miles) or every six months, whichever comes first. Replace it if it is damaged or excessively dirty.
To adjust the chain tension, first place the bike on a stand. Loosen the rear axle nut, then adjust the chain adjusters evenly on both sides to achieve a slack of 30-40 mm (1.2-1.6 inches) at the midpoint. Retighten the rear axle nut to the specified torque.
If the bike does not start, check the battery charge and connections, ensure the kill switch is in the run position, examine the fuel level, and inspect the spark plug for fouling. If issues persist, consult a professional.
The recommended tire pressure for the Yamaha WR250R 2016 is 22 psi (150 kPa) for the front tire and 25 psi (175 kPa) for the rear tire when riding on-road. Adjust accordingly for off-road conditions.
Regularly check the brake fluid level and top it up with DOT 4 brake fluid if necessary. Inspect brake pads for wear and replace them if below the minimum thickness. Bleed the brakes annually or if the brakes feel spongy.
Common electrical issues include battery drainage and faulty connections. Ensure all connections are secure and clean, and regularly charge the battery if the bike is not used frequently. Consider replacing the battery if it does not hold a charge.
For off-season storage, clean the bike thoroughly, change the oil, fill the fuel tank or add a fuel stabilizer, disconnect the battery, and store it in a dry, covered area. Inflate tires to the recommended pressure to prevent flat spots.
The recommended spark plug for the Yamaha WR250R 2016 is NGK CR9E, with a gap specification of 0.7-0.8 mm (0.028-0.031 inches). Check and adjust the gap if necessary before installation.
The coolant should be replaced every two years or 24,000 km (15,000 miles), whichever comes first. Use a 50/50 mix of antifreeze and distilled water for optimal performance.