Yamaha WR125 (1990-96)

The Yamaha WR 125 was a two-stroke, single-cylinder motorcycle produced between 1990 and 1996. It had a liquid-cooled engine with a capacity of 124cc and a compression ratio of 8.8:1. The bike used a carburetor for induction and CDI for ignition. The WR 125 had a six-speed transmission and a chain final drive. The front suspension was a Marzocchi “Upside-Down” telescopic hydraulic fork with advanced axle, while the rear suspension was a Sachs progressive “Soft Damp” type with a single hydraulic shock absorber. Both had compression and rebound adjustment. The front and rear brakes were both single disc. The bike had a dry weight of 99kg and a fuel capacity of 9.5 liters. Its front tire measured 80/90-21, while the rear tire measured 110/80-18. A road test conducted by Motosprint in 1990 found the Yamaha WR 125 performed well in a group test.

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Technical specifications:

Make Model: Yamaha WR 125

Year: 1990 – 96

Engine: Two stroke, single cylinder

Capacity: 124 cc / 7.6 cu-in

Bore x Stroke: 54 x 4 mm

Cooling System: Liquid cooled

Compression Ratio: 8.8;1

Induction: Car4buretor

Ignition: CDI

Starting: Kick

Max Power: NA

Max Torque: NA

Transmission: 6 Speed

Final Drive: Chain

Front Suspension: Marzocchi “Upside-Down” telescopic hydraulic fork with advanced axle; compression and rebound stroke adjustment

Rear Suspension: Sachs progressive “Soft Damp” type with single hydraulic shock absorber; spring preload adjustment, compression and rebound adjustment

Front Brakes: Single disc

Rear Brakes: Single disc

Front Tyre: 80/90-21

Rear Tyre: 110/80-18

Dry Weight: 99 kg / 218 lbs

Fuel Capacity: 9.5 Litres / 2.5 US gal

Road Test: Motosprint 1990 Group Test