| MODEL | YAMAHA WR 250F 2003 - 2004 |
| Year | 2003 - 2004 |
| Engine Type | Four stroke, single cylinder, DOHC, 5 valve |
| Displacement / Capacity | 249 cc / 15.2 cu in |
| Bore X Stroke | 77 x 53.6 mm |
| Compression Ratio | 12.5:1 |
| Cooling System | Liquid cooled |
| Max Power | — |
| Max Torque | — |
| Ignition | Digital CDI |
| Induction | Keihin FCR-MX37 flat-slide with throttle position sensor |
| Start System | Electric & Kick |
| TRANSMISSION SPECS | |
| Lubrication | Dry sump |
| Gear Box | 5 Speed |
| Clutch | Wet, multiple discs, cable operated |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | 48mm fully adjustable inverted forks (300 mm / 11.8 in travel) |
| Rear Suspension | Fully adjustable link Monocross (305 mm / 12.0 in travel) |
| Front Brakes | Single 250mm disc, 2 piston caliper |
| Rear Brakes | Single 240mm disc, 1 piston caliper |
| DIMENSION SPECS | |
| Overall Length | 2315 mm / 91.1 in |
| Overall Width | 826 mm / 32.5 in |
| Overall Height | 1275 mm / 50.2 in |
| Seat Height | 998 mm / 39.3 in |
| Wheelbase | 1475 mm / 58.1 in |
| Ground Clearance | 335 mm / 13.2 in |
| Dry Weight | 106 kg / 233.2 lbs |
| Wet Weight | 129.0 kg / 284.4 lbs |
| WHEEL SPECS | |
| Front Tyre | 80/100-21 |
| Rear Tyre | 100/100-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 8 Litres / 2.1 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The WR250F is Yamaha's four-stroke, five-valve enduro bike, derived from the YZ250F motocross machine but tuned for smoother, more controllable power. It adds an electric starter with a kick backup, dry-sump lubrication and a fully adjustable suspension package for off-road competition. This period carries the early-generation engine and chassis largely unchanged.
