The 2005 Arctic Cat 650 V-Twin 4x4 FIS is a utility all-terrain vehicle renowned for its powerful 650cc V-twin engine, 4x4 drivetrain with Front Differential Lock (FIS), and robust construction. Designed for demanding work and recreational riding, this model competed in the utility ATV segment by offering a blend of performance, capability, and the distinctive power delivery of its V-twin configuration. Its engineering focused on providing reliable performance in various terrains, supported by features such as an automatic transmission with Hi/Lo range and independent suspension for enhanced comfort and control. This comprehensive English-language parts manual provides detailed illustrations, exploded views, and parts lists for the 2005 Arctic Cat 650 V-Twin 4x4 FIS. It covers a wide array of systems, including the engine, drivetrain, suspension, brakes, and more, facilitating accurate parts identification for overhaul, disassembly, and assembly procedures. The manual serves as an indispensable resource for owners, technicians, and mechanics, enabling efficient maintenance, repair, and part ordering to ensure the continued optimal performance and longevity of the vehicle.