Welcome to the comprehensive guide for your YTM225 Tri Moto, a versatile and robust three-wheeled ATV produced from 1983 to 1987. This model, available in DRS, DRN, and DXK variants, is celebrated for its reliable 4-stroke, air-cooled 225cc engine, 5-speed manual transmission with reverse, and shaft drive, making it a capable machine for recreational use and utility. The heritage in off-road vehicle manufacturing ensures a focus on quality engineering and dependable performance, characteristics that have cemented the YTM225's enduring appeal among enthusiasts. This manual serves as an essential resource for all owners and technicians, providing complete A-Z coverage for service, repair, and maintenance procedures. It details critical aspects of the vehicle, including engine overhaul, transmission and drivetrain servicing, suspension and brake system maintenance, and electrical system diagnostics. With step-by-step instructions, detailed illustrations, and troubleshooting guides, this manual empowers you to perform everything from routine maintenance, such as oil changes and air filter cleaning, to more complex repairs, ensuring your YTM225 remains in optimal condition.