Z 550 GT (reduced effect)

1990 Kawasaki Z 550 GT (reduced effect) Technical Analysis & Specification Breakdown

At the heart of the 1990 Kawasaki Z 550 GT (reduced effect) touring motorcycle, Kawasaki features a 553 cc (33.7 cu in) air-cooled in-line four, four-stroke configuration. In factory specification, peak output is rated at 27 HP (19.7 kW) at 7,300 rpm, transferring power to the rear wheel through a 6-speed gearbox and shaft drive (cardan) final drive. With a specific output of 48.8 HP per liter, the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.

On the scales, the Z 550 GT (reduced effect) measures 221 kg (487 lbs) wet (curb), translating to a power-to-weight ratio of 0.12 HP/kg (8.19 kg per horsepower). The 22-liter (5.8 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 132 km/h (82 mph).

Within MotoLibrary's Kawasaki archive, this model family spans 3 indexed model years from 1988 to 1990, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.