This manual covers the BMW R-Series Airhead motorcycles, specifically the R80, R90, and R100 models. These iconic motorcycles are renowned for their air-cooled, horizontally opposed twin-cylinder boxer engines, shaft drive, and robust construction, making them ideal for touring and everyday use. The R-series is celebrated for its engineering quality, reliability, and distinctive character, representing a significant evolution in BMW's long motorcycle manufacturing legacy. Their enduring popularity and high owner satisfaction ratings are a testament to their durability and performance.

This Service Repair Workshop Manual provides comprehensive guidance for the maintenance, repair, and troubleshooting of your BMW R-Series motorcycle. It covers all major systems, including the engine, transmission, clutch, fuel system, ignition, brakes, electrical system, and chassis. Detailed procedures for routine maintenance, engine rebuilds, transmission overhauls, carburetor tuning, and suspension servicing are included, along with essential technical specifications, torque values, and diagnostic charts. This manual is an indispensable resource for owners, mechanics, and technicians to ensure the optimal performance and longevity of these classic machines.