This manual covers the 2001 Yamaha TT-R125LW(M), a versatile off-road motorcycle designed for entry-level to intermediate riders. Known for its reliability, approachable power delivery, and ease of maintenance, the TT-R125LW is well-suited for trail riding and recreational off-roading. Its long wheelbase (LW) designation contributes to stability, making it a popular choice for developing riding skills. The motorcycle features a 124 cc SOHC 4-stroke, air-cooled engine with a 5-speed transmission and a wet, multi-disc clutch, powered by a Mikuni VM20 carburetor. The chassis includes front hydraulic disc and rear drum brakes, telescopic front forks with 170 mm travel, and a rear suspension with 180 mm travel.

This comprehensive service repair manual in English provides detailed instructions for the diagnosis, repair, and maintenance of the 2001 Yamaha TT-R125LW(M). It covers all major mechanical and electrical systems, including the engine, transmission, clutch, final drive, frame, suspension, steering, wheels, brakes, and electrical components. The manual offers step-by-step procedures for scheduled maintenance, troubleshooting, and complete overhauls, along with essential technical specifications, torque settings, and wiring diagrams. Its thoroughness ensures that owners, mechanics, and technicians have the necessary information to keep the TT-R125LW operating at peak performance and reliability.