This comprehensive Factory Service Repair Manual provides detailed instructions and technical specifications for the BMW R80, R90, and R100 motorcycles manufactured in 1987. With hundreds of pages of meticulously organized information, this manual is your ultimate resource for maintaining and repairing your classic BMW. You'll find detailed instructions covering every aspect of your motorcycle, from basic maintenance and troubleshooting to complex engine rebuilds and electrical system repairs. This manual is an invaluable tool for both experienced mechanics and DIY enthusiasts, empowering you to keep your BMW running smoothly and reliably.

The BMW R80, R90, and R100 models, produced by BMW Motorrad between 1978 and 1996, represent the iconic "airhead" era of BMW motorcycles. These air-cooled, shaft-driven machines are renowned for their rugged reliability, timeless design, and classic riding experience. The R80, R90, and R100 models shared the same basic design, featuring a horizontally opposed, two-cylinder boxer engine and a tubular steel frame. The main difference between these models lies in their engine displacement: the R80 had an 797 cc engine, the R90 a 898 cc engine, and the R100 boasts a 980 cc engine, each delivering progressively more power and torque. These models were available in various configurations, including the standard "R" model, the "RT" tourer, the "GS" off-roader, and the sporty "RS" variant. The 1987 BMW R80, R90, and R100 models were part of the "evolution" series, which introduced several refinements over earlier models. Improvements included a revised engine with a redesigned cylinder head, new Solex carburetors for enhanced fuel efficiency, and a redesigned gearbox for smoother shifting. The suspension was also upgraded with a more responsive Telelever front fork and a Monolever rear swingarm. These, and other refinements, helped to solidify the R80, R90, and R100 as reliable, dependable motorcycles suitable for both touring and everyday riding. The 1987 models were also notable for their distinctive color schemes, offering a range of vibrant and classic finishes that reflected the evolving tastes of the time. These "airhead" machines represent a significant chapter in the history of BMW motorcycles, combining engineering excellence with timeless design, and continue to be popular among enthusiasts today.