| Year | 2014 |
| Bore x Stroke | 77 x 53.6 mm |
| Capacity | 249 / 15.2 cub in. |
| Compression Ratio | 11.8:1 |
| Cooling System | Liquid cooled |
| Dimensions | Length 2,11 mm / 83.1 in Width 810 mm / 31.9 in Height 1191 mm / 46.9 in |
| Dry Weight | 127 kg / 280 lbs |
| Engine | Four stroke, single cylinder, DOHC, 4 valve |
| Final Drive | Chain |
| Front Brakes | Single 298mm disc |
| Front Suspension | Inverted fork; fully adjustable, 269mm wheel travel |
| Front Tyre | 110/70-17 |
| Front Wheel Travel | 269 mm / 10.6 in |
| Fuel Capacity | 7.6 Litres / 2.0 gal |
| Ground Clearance | 259 mm / 10.2 in |
| Ignition | TCI |
| Induction | Electronic fuel injection |
| Lubrication | Dry sump |
| Max Power | 22.6 kW / 30.3 hp @ 10 000 rpm |
| Max Torque | 23.7 Nm 2.42 kgf-m / 17.5 lb-ft. @ 8 000 rpm |
| Rear Brakes | Single 230mm disc |
| Rear Suspension | Single shock; fully adjustable, 264mm wheel travel |
| Rear Tyre | 140/70-17 |
| Rear Wheel Travel | 264 mm / 10.4 in |
| Reviews | Yamaha WR250X vs Kawasaki KLX250SF |
| Seat Height | 894 mm / 35.2 in |
| Starting | Electric |
| Transmission | 6 Speed |
| Wheelbase | 1425 mm / 56.1 in |
