The Tri-Moto YTM 225 is a robust three-wheeled All-Terrain Vehicle (ATV) produced from 1983 to 1986. Engineered by, this model features a reliable air-cooled, four-stroke SOHC 223 cc engine, delivering approximately 14-15 horsepower, coupled with a 5-speed manual transmission and shaft drive. Its design prioritizes durability and performance for off-road use, making it a capable machine for various terrains. The Tri-Moto YTM 225 is known for its straightforward mechanics and the quality associated with 's manufacturing heritage. This comprehensive service repair manual, written in English, provides in-depth guidance for the Tri-Moto YTM 225 covering the model years 1983 through 1986. It details essential maintenance procedures, step-by-step repair instructions based on complete disassembly, and troubleshooting specific to the electrical system. The manual includes hundreds of photos and illustrations, along with numbered instructions and cautionary notes, to assist both do-it-yourself enthusiasts and experienced mechanics. Its scope encompasses all aspects of the vehicle, including the fuel, cooling, lubrication, engine, clutch, transmission, brakes, suspension, steering, frame, and electrical systems, ensuring comprehensive support for vehicle upkeep and repair.