This manual covers the Yamaha Viking 540 III snowmobile, produced for the model years 2001 through 2005. The Viking series is recognized for its comfort and capability, designed for riders prioritizing longer journeys and passenger transport. Yamaha's heritage in powersports vehicles underscores the engineering quality and reliability expected from this model. This snowmobile features a likely 535cc, 2-stroke, liquid-cooled engine, a CVT transmission with forward, neutral, and reverse, and a hydraulic disc braking system. Its robust construction and thoughtful design make it a capable machine for various winter conditions. This comprehensive service repair workshop manual provides detailed information for owners and technicians to maintain and repair the Yamaha Viking 540 III. It covers a wide range of systems including the fuel, cooling, engine lubrication, and electrical systems, as well as the clutch, transmission, crankshaft, final drive, wheels, tires, brakes, suspension, steering, and frame. The manual includes step-by-step repair instructions, complete disassembly and assembly guidance, troubleshooting procedures, routine maintenance schedules, and component replacement information. With its detailed procedures, illustrations, and technical specifications, this manual is an essential resource for ensuring the optimal performance and longevity of your snowmobile.