2005 Yamaha YZ 250 specifications
Available technical data for this model and year. Specifications can vary by market and version.
Technical specifications
| Displacement | 249.0 ccm (15.19 cubic inches) |
|---|---|
| Engine type | Single cylinder, two-stroke |
| Compression | 9.1:1 |
| Bore x stroke | 66.4 x 72.0 mm (2.6 x 2.8 inches) |
| Valves per cylinder | 1 |
| Fuel system | Carburettor |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Ignition | Digital CDI |
| Cooling system | Liquid |
| Gearbox | 5-speed |
| Transmission type | Chain (final drive) |
| Clutch | Wet, multiple discs, cable operated |
| Frame type | Aluminium Bilateral Beam |
| Front suspension | 48mm Kayaba inverted cartridge fork w/adjustable compression and rebound damping |
| Rear suspension | Kayaba single shock w/adjustable preload, compression and rebound damping separate hi/lo-speed compression adjusters |
| Front brakes | Single disc. Two-piston calipers. |
| Rear brakes | Single disc. Single-piston caliper. |
| Front tyre | 80/80-21 |
| Rear tyre | 110/90-19 |
| Dry weight | 106.0 kg (233.7 pounds) |
| Weight incl. oil, gas, etc | 129.0 kg (284.4 pounds) |
| Seat height | 991 mm (39.0 inches) If adjustable, lowest setting. |
| Overall height | 1308 mm (51.5 inches) |
| Overall length | 2182 mm (85.9 inches) |
| Overall width | 828 mm (32.6 inches) |
| Ground clearance | 335 mm (13.2 inches) |
| Wheelbase | 1486 mm (58.5 inches) |
| Fuel capacity | 7.94 litres (2.10 US gallons) |
Source: Bikez: YZ 250, 2005. Retrieved 2026-09-19. Match confidence: exact.
Years listed are the entries held in this archive, rather than a complete production history.
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