This manual covers the TTR225 motorcycle, produced for the model years 1999 through 2004. Known for its robust engineering and reliability, the TTR225 is a capable trail bike designed to offer a balanced performance for both recreational trail riding and general use. The heritage in producing durable and user-friendly motorcycles is evident in this model, which has been appreciated for its ease of use and solid off-road capability. This guide provides comprehensive information to ensure owners can maintain and understand their TTR225. This Service Repair Workshop Manual is designed to be the definitive resource for maintaining and repairing your TTR225. It offers in-depth coverage of all vehicle systems, including detailed procedures for engine mechanicals, fuel and ignition systems, transmission, chassis, suspension, and brakes. The manual includes routine maintenance schedules, step-by-step troubleshooting guides for common issues, and instructions for major repairs and component overhauls. With its professional quality, factory-type information, and detailed diagrams, this manual empowers owners and technicians to perform all necessary service and repair tasks effectively, ensuring the longevity and optimal performance of the motorcycle.