Zephyr 550

1997 Kawasaki Zephyr 550 Technical Analysis & Specification Breakdown

Positioned in Kawasaki's naked motorcycle lineup, the 1997 Kawasaki Zephyr 550 relies on a 553 cc (33.7 cu in) in-line four, four-stroke powerplant. In factory specification, peak output is rated at 50 HP (36.5 kW) at 10,000 rpm while maximum torque reaches 35 Nm (25.8 lb-ft) at 3,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 90.4 HP per liter and a 6,500 rpm working window between peak torque (3,500 rpm) and peak power (10,000 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

On the scales, the Zephyr 550 measures 179 kg (395 lbs) dry, translating to a power-to-weight ratio of 0.28 HP/kg (3.58 kg per horsepower). Rider ergonomics and chassis geometry center around a 795 mm (31.3 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance.

Within MotoLibrary's Kawasaki archive, this model family spans 5 indexed model years from 1991 to 1999, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.