KH 125

1977 Kawasaki KH 125 Technical Analysis & Specification Breakdown

Positioned in Kawasaki's classic motorcycle lineup, the 1977 Kawasaki KH 125 utilizes a 124 cc (7.6 cu in) air-cooled single cylinder, two-stroke layout. In factory specification, peak output is rated at 14 HP (10.2 kW) at 6,770 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 112.9 HP per liter, the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.

On the scales, the KH 125 measures 106 kg (234 lbs) wet (curb), translating to a power-to-weight ratio of 0.13 HP/kg (7.57 kg per horsepower). The 7.5-liter (2 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 109 km/h (68 mph).

Within MotoLibrary's Kawasaki archive, this model family spans 4 indexed model years from 1977 to 1980, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.