The Massey-Ferguson Ski Whiz represents a robust entry into the performance and utility snowmobile market, produced between approximately 1978 and 1983. These machines were engineered to tackle varied snow conditions, balancing trail performance with practical utility capabilities, and were powered by two-stroke gasoline engines. Key models covered include the MF 304, 304T, MF 344T, MF 404T, MF 444T, 404WT, and MF 444WT. Known for their solid construction and reliable operation, the Ski Whiz models were designed to offer a dependable snow-traveling experience, reflecting Massey-Ferguson's heritage in industrial equipment. This comprehensive Service and Repair Manual provides detailed guidance for maintaining and repairing your Massey-Ferguson Ski Whiz snowmobile. It covers essential systems including the engine, fuel, ignition, cooling, drivetrain, suspension, brakes, and electrical components. Within its pages, you will find step-by-step instructions for routine maintenance, component disassembly and assembly, troubleshooting common issues, and detailed technical specifications. This manual is an indispensable resource for owners, mechanics, and technicians seeking to ensure the optimal performance, longevity, and safety of their Ski Whiz snowmobile.