The GS250, produced between 1985 and 1990, represents a significant model within a versatile four-stroke motorcycle lineup. Known for its reliable parallel-twin engine, this motorcycle was engineered to offer a capable and accessible riding experience, making it a popular choice for a wide range of riders. The heritage in producing sporty and well-engineered motorcycles is evident in the GS250, which embodies the commitment to quality and performance within its class during the mid-to-late 1980s. This comprehensive workshop service repair manual provides detailed guidance for the GS250, covering all styles across its production years. It encompasses a vast array of information, including complete engine overhaul, fuel system servicing, ignition system diagnostics, transmission and drivetrain maintenance, suspension and brake system repairs, and electrical system troubleshooting with wiring diagrams. The manual also details scheduled maintenance, adjustments, and disassembly/assembly procedures, offering factory-level repair information with hundreds of illustrations to assist owners and technicians in maintaining and repairing their GS250.