This manual covers the BMW R80, R90, and R100 series motorcycles manufactured around 1990. These iconic "Airhead" models are renowned for their robust, air-cooled boxer twin-cylinder engines, shaft drive, and enduring reliability, making them a staple for touring and everyday riding. The engineering quality of these motorcycles is a testament to BMW's commitment to producing durable and capable machines, with a lineage stretching back decades. Their unique character and proven performance have solidified their place in motorcycle history, appealing to riders who value mechanical simplicity and long-term usability.

This comprehensive Service Repair Workshop Manual provides essential information for the maintenance and repair of your BMW R80, R90, or R100 motorcycle. It details procedures for all major mechanical and electrical systems, including engine overhaul, fuel system servicing, transmission and drivetrain maintenance, brake system repairs, and suspension adjustments. The manual is designed for professional mechanics and experienced DIY enthusiasts, offering in-depth guidance on routine maintenance, troubleshooting common issues, and performing complex rebuilds. With factory-level data, diagrams, and specifications, this manual is an indispensable resource for ensuring the optimal performance and longevity of your motorcycle.