This comprehensive BMW R90 1981 Full Service Repair Manual provides a wealth of information for owners and mechanics alike. It covers all aspects of repair, maintenance, rebuilding, refurbishment, and restoration for your BMW R90 motorcycle. The manual features detailed instructions, diagrams, and specifications, making it an indispensable resource for tackling any project, from routine maintenance to complex engine overhauls. With this manual, you'll have access to the knowledge and guidance you need to keep your BMW R90 running smoothly and reliably for years to come.

The BMW R90, produced from 1977 to 1985, is a legendary motorcycle that embodies the spirit of classic German engineering and design. This air-cooled, horizontally opposed twin-cylinder behemoth, also known as the "boxer" engine, delivered a smooth and reliable ride, making it a favorite among touring enthusiasts. The R90, equipped with a 900cc engine, boasted a generous amount of torque, making it capable of effortless cruising on open roads. Its iconic design features include a classic teardrop-shaped fuel tank, a sturdy tubular frame, and a long, comfortable seat. The R90 is renowned for its smooth and predictable handling, thanks to its telescopic front forks and swingarm rear suspension. While not the most powerful motorcycle of its time, the R90 offered a balanced blend of performance and comfort, making it an ideal choice for long-distance journeys. The 1981 BMW R90, in particular, stands out as a prime example of the model's evolution. It received several refinements, including a revised ignition system for improved reliability and a more refined fuel injection system for better fuel efficiency and smoother throttle response. The 1981 model also featured a slightly revised front fairing, providing improved wind protection for the rider. The R90's enduring appeal lies in its classic aesthetic, its timeless design, and its proven reliability. While it may not have the cutting-edge technology of modern motorcycles, the R90 offers a unique and nostalgic riding experience that continues to enthrall enthusiasts today. Its simplicity, ease of maintenance, and robust construction make it a perfect choice for those seeking a classic motorcycle that can be enjoyed for years to come. The full service repair manual for the 1981 BMW R90 provides a comprehensive guide to understanding and maintaining this iconic machine, allowing owners to keep their R90 running smoothly for years to come.