This workshop repair manual covers the Kawasaki KZ400, KZ500, and KZ550 series motorcycles produced from 1979 to 1981. These models, featuring inline-twin (KZ400, KZ500) and inline-four (KZ550) air-cooled engines, were designed for versatility, offering a balance of performance and reliability that made them popular for commuting and general riding. Known for their robust engineering and accessible performance, the KZ series established Kawasaki as a significant force in the mid-displacement motorcycle market, competing with offerings from Honda, Yamaha, and Suzuki. This manual details various engine codes and frame codes within these series, encompassing models like the KZ400 Standard, KZ400 LTD, KZ500, KZ550 Standard, and KZ550 GPz.

This comprehensive service manual provides detailed instructions for the maintenance, repair, and troubleshooting of your Kawasaki KZ400, KZ500, or KZ550. It covers all essential systems, including engine mechanicals, fuel and ignition systems, transmission, drivetrain, chassis, brakes, and electrical components. Within its approximately 300-400 pages, you will find procedures for scheduled maintenance, engine overhauls, carburetor tuning, suspension rebuilds, and electrical system diagnostics, complete with wiring diagrams. The manual is designed to assist owners, mechanics, and technicians in maintaining the optimal performance and longevity of these motorcycles.