This service repair manual covers the Yamaha VX750 and VX800/MM800 snowmobile models produced from 1994 to 1997. These models, typically featuring 750cc or 800cc class twin-cylinder, liquid-cooled, 2-stroke engines with dual carburetors and a CVT transmission, were designed for performance and trail riding. Yamaha's long-standing reputation for innovation and reliability in snowmobile manufacturing is reflected in the robust engineering of these machines. The VX series, in particular, represented Yamaha's commitment to versatile and capable snowmobiles, utilizing well-regarded engine designs known for smooth power delivery and durability. This comprehensive manual provides detailed service and repair procedures for owners and technicians. It covers essential areas including general information, periodic inspections and adjustments, chassis, power train, engine overhaul, cooling system, carburetion, electrical systems, and detailed specifications. The manual also includes information on assembling and disassembling components, wiring diagrams for electrical troubleshooting, and maintenance schedules. Its purpose is to facilitate the proper maintenance and repair of these Yamaha snowmobiles, ensuring their continued performance and longevity.