Yamaha WR25RZ C WR250R 2010 Owner's Manual
![Yamaha WR25RZ C WR250R 2010 manual cover](/images/54a04f973e30d433cd7198dd/thumbs/thumb175x175.webp)
It is recommended to change the oil every 3,000 miles or every six months, whichever comes first, to ensure optimal engine performance.
The Yamaha WR250R 2010 is designed to run on unleaded gasoline with a minimum octane rating of 91 (R+M)/2.
To adjust the chain tension, first place the bike on a stand. Loosen the rear axle nut, then turn the chain adjusters on either side of the swingarm equally until the desired tension is achieved, ensuring 30-40mm of slack. Tighten the axle nut securely after adjustment.
The recommended tire pressure for the WR250R is 22 psi for the front tire and 25 psi for the rear tire. Always check tire pressure when the tires are cold.
If your WR250R is having starting issues, check the battery charge, inspect the spark plug for wear or fouling, ensure the fuel is fresh, and verify that the kill switch and kickstand safety switch are in the correct position.
Common signs include a squealing noise when braking, reduced braking performance, and visible wear on the brake pads where the pad thickness is less than 1.5mm.
Regularly inspect the fork seals for leaks, clean the fork tubes, and adjust the suspension settings according to your riding conditions and weight. Consider servicing the suspension every 10,000 miles or as needed.
The correct spark plug gap for the Yamaha WR250R 2010 is 0.9 to 1.0 mm. Make sure to use a feeler gauge to check and adjust the gap if necessary.
Remove the seat to access the air filter. Take out the air filter, clean it with a mild detergent, rinse with water, and let it dry completely. Apply a light coat of air filter oil before reinstalling.
If your WR250R overheats, stop riding and let the engine cool down. Check the coolant level, inspect the radiator for blockages, and ensure the cooling fan is operational. Seek professional help if the problem persists.