This comprehensive workshop manual provides detailed instructions and technical specifications for servicing and repairing your BMW R80 GS and R 100R motorcycles. It covers a wide range of topics essential for maintaining your bike, including: * **Completing the Motorcycle and Pre-Delivery Check:** This section guides you through the final steps of assembling your motorcycle and ensuring it meets quality standards before delivery. * **Maintenance and Inspection:** The manual outlines regular maintenance schedules, detailing procedures for inspection and servicing various components of your motorcycle. * **Operating Media and Servicing Data:** This section provides you with information on the proper operating fluids, lubricants, and other consumables required for your BMW. It also offers valuable servicing data, including torque specifications and recommended intervals. * **Electrics:** The manual covers the electrical system of your motorcycle, providing guidance on troubleshooting and repairing electrical components, wiring diagrams, and electronic systems. * **Brake System:** This section delves into the intricacies of your motorcycle's braking system, offering detailed instructions on servicing, adjusting, and replacing brake components. * **Suspension:** Learn about the suspension system of your BMW, including maintenance, adjustments, and repair procedures for forks, shocks, and other suspension components. * **Frame Attachments:** This section covers the various components attached to the motorcycle frame, such as luggage racks, handlebars, and other accessories. * **Exhaust System:** The manual provides information on the exhaust system of your BMW, including servicing, troubleshooting, and repair procedures. * **Gearbox:** Gain a thorough understanding of your motorcycle's gearbox, covering maintenance, repair, and adjustment procedures. * **Clutch:** The manual offers detailed instructions on servicing, adjusting, and repairing your motorcycle's clutch system. * **Engine:** This comprehensive section covers the intricacies of your BMW engine, offering detailed information on maintenance, servicing, troubleshooting, and repair procedures for all internal components. * **Technical Data:** The manual concludes with a collection of crucial technical specifications, dimensions, and other data critical for effective servicing and repair.

The BMW R80 GS and R100R are classic motorcycles, each representing different facets of BMW's motorcycle lineage. The R80 GS, launched in 1980, marked a significant step forward for adventure touring. It was the first production motorcycle to feature a large displacement boxer engine paired with a long-travel suspension, a combination that revolutionized off-road riding. The iconic "GS" moniker, short for "Gelände-Sport", aptly describes the bike's capabilities. The R80 GS featured a robust air-cooled, horizontally opposed 797cc boxer engine, capable of delivering around 50 horsepower. This power, coupled with the telescopic front forks and a single-sided swingarm, allowed the R80 GS to tackle challenging terrain and paved the way for modern adventure bikes we know today. In contrast, the R100R, launched in 1985, was a pure roadster, emphasizing performance and handling on paved surfaces. Powered by a larger 980cc boxer engine, it offered around 60 horsepower and a more refined riding experience than its GS sibling. The R100R was characterized by its minimalist design, featuring a tubular steel frame, a low-slung profile, and a classic round headlight. With its responsive engine, precise handling, and comfortable ergonomics, the R100R became a popular choice for riders seeking a thrilling and engaging riding experience on roads. Both the R80 GS and R100R were lauded for their reliability, durability, and timeless design. They cemented BMW's reputation for building motorcycles that offered a unique blend of performance, comfort, and practicality, contributing significantly to the brand's legacy.