Z 400 J

1982 Kawasaki Z 400 J Technical Analysis & Specification Breakdown

Engineered by Kawasaki for the touring motorcycle segment, the 1982 Kawasaki Z 400 J utilizes a 399 cc (24.4 cu in) air-cooled in-line four, four-stroke layout. In factory specification, peak output is rated at 27 HP (19.7 kW) at 8,000 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 67.7 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

On the scales, the Z 400 J measures 210 kg (463 lbs) wet (curb), translating to a power-to-weight ratio of 0.13 HP/kg (7.78 kg per horsepower). The 16.5-liter (4.4 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 154 km/h (96 mph).

Within MotoLibrary's Kawasaki archive, this model family spans 4 indexed model years from 1980 to 1983, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.