The Yamaha YFM225 Moto 4 is a 1987 all-terrain vehicle (ATV) designed as a versatile sport/utility model. Known for its reliable air-cooled, four-stroke engine and shaft drive for reduced maintenance, this ATV offered a comfortable riding position and was a popular choice for recreational riding and light work. Competing with other manufacturers' offerings of the era, the YFM225 Moto 4 was a significant model in Yamaha's development of four-wheeled ATVs, contributing to their growing presence in the market.

This comprehensive 118-page English-language manual serves as an owner's guide, detailing essential maintenance procedures, operational guidelines, and technical specifications for the 1987 Yamaha YFM225 Moto 4. It covers key systems including the engine, fuel, ignition, transmission, drive, suspension, braking, electrical, cooling, steering, and frame. The manual also provides information on routine maintenance, pre-ride inspections, troubleshooting, lubrication, adjustments, and storage recommendations, empowering owners and technicians to maintain the ATV's performance and longevity.