GPZ 900 R

1987 Kawasaki GPZ 900 R Technical Analysis & Specification Breakdown

Built around Kawasaki's sport touring motorcycle platform, the 1987 Kawasaki GPZ 900 R features a 908 cc (55.4 cu in) liquid-cooled in-line four, four-stroke configuration. In factory specification, peak output is rated at 115 HP (83.9 kW) at 9,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 126.7 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 GPZ 900 R measures 257 kg (567 lbs) wet (curb), translating to a power-to-weight ratio of 0.45 HP/kg (2.23 kg per horsepower). The 22-liter (5.8 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's Kawasaki archive, this model family spans 9 indexed model years from 1984 to 1992, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.