2007 Yamaha WR250F
Technical Specification
Engine Type - Liquid-cooled, 4-stroke, DOHC, 5-valve, Forward-inclined single cylinder
Displacement - 250 cc
Bore and stroke - 77.0 x 53.6 mm
Compression ratio - 12.5 : 1
Max. power - NA
Max. torque - NA
Lubrication - Dry sump
Carburettor - Keihin FCR-MX37/1
Clutch type - Wet, multiple-disc coil spring
Ignition - CDI
Starter system - Electric and kick
Transmission - Constant mesh, 5-speed
Final transmission - Chain
Primary reduction ratio - 57/17 (3.353)
Secundary reduction ratio - 50/13 (3.846)
Gear ratio - Gear ratio 1; 31/13 (2.385), Gear ratio 2; 28/16 (1.750), Gear ratio 3; 23/17 (1.353), Gear ratio 4; 23/21 (1.095), Gear ratio 5; 17/19 (0.895)
Frame - Alu semi-double cradle
Front suspension - Telescopic forks
Front wheel travel - 300 mm
Rear suspension - Swingarm (link suspension)
Rear wheel travel - 310 mm
Caster angle - 26.6°
Trail - 114 mm
Front brake - Single disc, Ø 250 mm
Rear brake - Single disc, Ø 245 mm
Front tyre - 90/90-21 54R
Rear tyre - 130/90-18 69R
Overall length - 2,180 mm
Overall width - 825 mm
Overall height - 1,305 mm
Seat height - 990 mm
Wheelbase - 1,480 mm
Min. ground clearance - 370 mm
Dry weight - 106 kg
Fuel tank capacity - 8.0 litres
Oil tank capacity - 1.4 litre
Specification are subject to change without notice, in accordance with national regulation and legislations.
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