The SZR660, also known as the SZR, is a lightweight supersport motorcycle produced from 1995 to 1998. Engineered with a 660cc liquid-cooled, four-stroke parallel-twin engine derived from the TDM/TRX series, it offers a potent balance of power and torque, delivering approximately 75-85 HP. Its design emphasizes sporty handling, featuring a lightweight aluminum twin-spar frame, telescopic front forks, and a Monocross rear suspension with adjustable preload. The SZR660 was primarily targeted at European and Japanese markets, appealing to enthusiast owners and DIY mechanics seeking a performance-oriented machine from an esteemed legacy of innovation and racing success. This comprehensive Professional Workshop Manual provides essential information for the maintenance, repair, and diagnostics of the SZR660 (chassis code DG07). Covering over 300 pages, it details every aspect of the motorcycle, from routine servicing and fluid specifications to complete engine and transmission overhauls. Key areas include detailed procedures for the engine, transmission, chassis, brakes, fuel system, and electrical components, all supported by step-by-step diagrams, exploded views, and wiring schematics. This manual is an invaluable resource for owners and technicians, offering authentic, dealer-level repair data to ensure the optimal performance and longevity of the SZR660, eliminating guesswork and reliance on inaccurate information.