This service workshop manual provides comprehensive technical information for BMW F 800 GS, F 800 S, F 800 ST, F 800 R, and F 650 GS (K7x) models. These motorcycles, powered by a parallel-twin engine typically around 798cc or 652cc for the F 650 GS, are known for their versatility, offering a blend of performance and comfort suitable for adventure touring and general riding. The F 800 platform, introduced by BMW Motorrad, represented a significant offering in the mid-weight motorcycle segment, characterized by its trellis frame, electronic fuel injection, and available advanced rider aids such as ABS and Automatic Stability Control (ASC). This manual is designed to be an indispensable resource for owners, independent repair shops, and DIY mechanics. It covers complete teardown and rebuild procedures, routine maintenance schedules, detailed troubleshooting guides, and essential technical specifications, including torque values and parts diagrams. The English-language manual, presented in a digital format for easy digital access and printing, facilitates in-depth understanding of all major vehicle systems, from the engine and transmission to the chassis, braking, and electrical systems. Its extensive coverage ensures that users can effectively maintain, diagnose, and repair their BMW motorcycles, preserving optimal performance and longevity.