Yamaha WR25RE, WR25REC WR250R 2014 Owner's Manual

The recommended oil type for the Yamaha WR250R 2014 is SAE 10W-40, API service classification of SG or higher.
It is recommended to change the oil every 3,000 miles or 3 months, whichever comes first, for optimal performance.
The correct tire pressure is 22 psi for the front tire and 25 psi for the rear tire.
Start by checking the battery charge and connections, ensure the fuel is fresh, and inspect the spark plug for wear or damage.
Regular maintenance includes oil changes, air filter cleaning/replacement, chain lubrication, and brake inspection.
Possible causes include low coolant levels, a malfunctioning thermostat, or a clogged radiator. Check these components and replenish or repair as needed.
To improve fuel efficiency, ensure proper tire pressure, perform regular maintenance, and avoid aggressive riding styles.
Clean the motorcycle thoroughly, change the oil, fill the fuel tank, add a fuel stabilizer, disconnect the battery, and store in a dry place.
Loosen the axle nut, adjust the chain adjuster bolts evenly until the correct tension is reached, then retighten the axle nut.
Use a high-quality ethylene glycol antifreeze coolant mixed with distilled water at a 1:1 ratio.