This workshop service repair manual provides comprehensive information for the GSF1250, GSF1250S, GSF1250A, and GSF1250SA motorcycles, also known as the Bandit 1250 series, manufactured for the 2008 and 2009 model years. These versatile sport-touring and naked motorcycles are powered by a robust 1255cc liquid-cooled inline-four engine, known for its strong mid-range torque and smooth power delivery, making them suitable for commuting, touring, and spirited riding. The legacy of producing reliable and performance-oriented machines is evident in the Bandit 1250's design philosophy, which blends practicality, comfort, and performance. The availability of faired (S) and non-faired variants, along with optional ABS, further enhances their adaptability to various rider preferences and conditions. This manual serves as an essential resource for maintaining and repairing your Bandit 1250. It covers a wide range of critical areas, including detailed engine procedures, suspension and driveline maintenance, brake system servicing, transmission overhauls, and steering system adjustments. The manual also includes comprehensive troubleshooting guides for common issues, step-by-step repair instructions for component disassembly and reassembly, and essential technical specifications such as torque values and fluid capacities. By following the detailed procedures and guidelines within this manual, owners and technicians can ensure the optimal performance, reliability, and longevity of their GSF1250 series motorcycle.