This manual covers the BMW R Series motorcycles, including the R80, R90, and R100 models produced across the 1970s, 1980s, and 1990s. These iconic air-cooled boxer twin motorcycles are renowned for their robust engineering, shaft drive reliability, and touring capabilities. From the versatile R80 models to the more powerful R100 variants, including the sport-touring RS and RT, and the dual-sport GS, these machines represent a significant era in motorcycle design and performance. Their enduring appeal lies in their durability and the distinctive character of their horizontally opposed engines.

This comprehensive Workshop Service Manual (WSM) provides detailed information essential for the maintenance, repair, and troubleshooting of your BMW R Series motorcycle. It covers all major systems, including the engine, transmission, drivetrain, fuel, ignition, electrical, brakes, suspension, and bodywork. Within these sections, you will find step-by-step procedures for scheduled maintenance, engine overhauls, electrical diagnostics, carburetor tuning, and brake system servicing. This manual is an indispensable resource for owners, mechanics, and technicians aiming to preserve the performance and longevity of these classic BMW motorcycles.