This manual covers the DT125 and DT125R models produced between 1988 and 2002. These motorcycles are renowned for their legacy of engineering quality, reliability, and performance, particularly in the dual-sport and off-road segments. The DT125 series has a history of versatility and durability, with the DT125R featuring advancements such as liquid cooling and improved performance, making it an iconic choice for riders seeking capability and an engaging experience. This comprehensive workshop repair service manual provides in-depth information for owners and technicians. It includes detailed procedures for engine systems, drivetrain, chassis components, and electrical systems. Covering everything from routine maintenance and fluid specifications to troubleshooting common issues and detailed repair procedures, this manual ensures the optimal performance and longevity of your DT125 or DT125R. The English-language manual is designed for easy navigation, with zoom capabilities and the option to print specific sections for convenient on-site use.