This manual pertains to the 998S, a distinguished superbike produced roughly between 2002 and 2004. As an evolution of the iconic 916 and 996 lineage, the 998S embodies the pinnacle of Italian engineering and racing heritage from its era. Renowned for its potent Desmodromic L-Twin Testastretta engine, delivering approximately 136 horsepower, and its sophisticated chassis, featuring a trellis frame and fully adjustable suspension, the 998S was designed for peak performance and rider engagement. Its liquid-cooled, 998cc engine, paired with a 6-speed sequential transmission and a dry clutch, ensures exhilarating performance on both road and track.

This comprehensive service workshop manual provides essential technical documentation for the 998S, covering critical areas such as bodywork, chassis, electrical systems, and the engine. It details routine maintenance procedures, disassembly and reassembly of major components, and advanced diagnostic techniques, including wiring diagrams and troubleshooting guides. The manual is intended for professional technicians, experienced mechanics, and advanced enthusiasts, offering step-by-step instructions and vital technical specifications like torque values and fluid requirements. Its objective is to facilitate the accurate maintenance, repair, and preservation of the 998S, ensuring its optimal performance and longevity.