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Technical Specifications 2009-WR125X

Engine
Engine type4-stroke, forward-inclined single cylinder, 4-valves, SOHC
Engine coolingLiquid cooled
Displacement124.7 cc
Bore x stroke52.0 x 58.6 mm
Compression ratio11.2:1
Maximum power11 kW (15 PS) @ 9,000 rpm
Maximum torque12.2 Nm (1.24 kg-m) @ 8,000 rpm
Lubrication systemWet sump
Engine oilSG: 10W30, 10W40, 15W40, 20W40 or 20W50
Fuel SystemFuel Injection
Fuel typeRegular unleaded
Clutch typeWet, multiple-disk coil spring
Ignition systemTCI (digital)
Spark plugNGK CR8E
Battery12V 5.5Ah
Starter systemElectric
Transmission systemConstant mesh, 6-speed
Primary reduction ratio73/24 (3.042)
Secundary reduction ratio53/14 (3.786)
Final transmissionChain
Ratios gearbox 1st34/12 (2.833)
Ratios gearbox 2nd53/14 (3.786)
Ratios gearbox 3rd30/22 (1.364)
Ratios gearbox 4th24/21 (1.143)
Ratios gearbox 5th22/23 (0.957)
Ratios gearbox 6th21/25 (0.840)
Chassis
ChassisSteel double cradle
Front suspension systemTelescopic forks Ø 41 mm
Front wheel travel210 mm
Rear suspension systemSwingarm (link suspension)
Rear wheel travel230 mm
Caster angle25.5º
Trail78.5 mm
Front brakeSingle disc, Ø 298 mm
Rear brakeSingle disc, Ø 220 mm
Front tyre110/70-17 M/C 54H (TUBELESS)
Rear tyre140/70-17 M/C 66H (TUBELESS)
Front rim17x MT3.00
Rear rim17x MT3.50
Dimensions
Overall length2,095 mm
Overall width835 mm
Overall height1,165 mm
Seat height920 mm
Wheelbase1,430 mm
Minimum ground clearance255 mm
Service weight (incl. liquids)137 kg
Fuel tank capacity (reserve)8.5 L
Engine oil tank capacity1.15 L
Radiator capacity1.1 L
Equipments
Headlight low/high beam12V 35W/12V 35W
Speedometer/RPM counterDigital/-
Fuel meterDigital

Specifications and appearance of Yamaha products shown here are subject to change without notice and may vary according to requirements and conditions. For further details please consult your Yamaha dealer.

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