2009 Yamaha WR250X
 
Technical Specifications
Engine
- Type - Liquid cooled, 4-stroke, forward-inclined
single cylinder, 4-valves, DOHC
- Displacement - 250 cc
- Bore x stroke - 77.0 X 53.6 mm
- Compression ratio - 11.8 : 1
- Max. Power - 22.6 kW (30.7 PS) @ 10,000 rpm
- Max. Torque - 23.7 Nm (2.42 kg-m) @ 8,000 rpm
- Lubrication system - Wet sump
- Fuel supply system - Electronic fuel injection
- Clutch type - Wet, multiple-disc coil spring
- Ignition system - TCI
- Starter system - Electric
- Transmission system - Constant mesh, 6-speed
- Final transmission system - Chain
- Primary reduction ratio - 78/25 (3.120)
- Secondary reduction ratio - 42/13 (3.231)
- Gear ratio-1st gear, 37/14 (2.643)
- Gear ratio-2nd gear, 29/16 (1.813)
- Gear ratio-3rd gear, 29/22 (1.318)
- Gear ratio-4th gear, 26/25 (1.040)
- Gear ratio-5th gear, 24/27 (0.889)
- Gear ratio-6th gear, 22/28 (0.786)
Chassis
- Frame - Semi double cradle
- Front suspension - Telescopic forks
- Front wheel travel - 270 mm
- Rear suspension - Swingarm (link suspension)
- Rear wheel travel - 265 mm
- Caster angle - 25º 20"
- Trail - 76 mm
- Front brake - Single disc, Ø 250 mm
- Rear brake - Single disc, Ø 230 mm
- Front tyre - 110/70R17M/C 54H
- Rear tyre - 140/70R17M/C 66H
Dimensions
- Overall length - 2,115 mm
- Overall width - 810 mm
- Overall height - 1,190 mm
- Seat height - 895 mm
- Wheelbase - 1,425 mm
- Min. ground clearance - 265 mm
- Wet weight (including full oil and fuel tank)
- 136 kg
- Fuel capacity - 7.6 litres
- Oil capacity - 1.5 litres
Specification are subject to change without notice,
in accordance with national regulation and legislations
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