This manual covers the 2008 TT-R125, including the TT-R125EX, TT-R125LX, and TT-R125LEX variants. The TT-R series has a long-standing reputation for robust and user-friendly trail bikes. The TT-R125 is designed for trail riding, recreational off-roading, and novice riders, featuring a four-stroke, SOHC, air-cooled 124cc engine, a 5-speed transmission, and front disc and rear drum brakes. Its engineering quality and reliability make it a suitable choice for its intended market segment. This comprehensive 289-page English Service Repair Manual provides factory-level technical detail for complete service, repair, and maintenance of your TT-R125. It covers all major systems including the engine, fuel system, electrical system, transmission, brakes, suspension, and chassis. Detailed procedures for disassembly, assembly, overhaul, diagnostics, and troubleshooting are included, along with essential technical specifications, torque values, and clear wiring diagrams. This manual is an indispensable resource for owners and technicians to ensure proper maintenance and repair, maximizing the longevity and performance of the vehicle.