The Yamaha TTR125, including its Standard, Electric Start (E), Long Wheelbase (L), and Long Wheelbase Electric Start (LE) variants, represents a robust and user-friendly off-road motorcycle. Produced primarily from 2001 to 2013, this model is recognized for its durability, simplicity, and versatility, making it an excellent choice for entry-level to intermediate riders, youth riders, and recreational trail enthusiasts. Its air-cooled four-stroke engine, coupled with features like an available electric start and a reliable chassis, ensures a dependable riding experience. The TTR125 is a testament to Yamaha's extensive off-road heritage, offering a well-balanced package that excels in various terrains.

This comprehensive repair manual serves as an essential resource for maintaining and repairing your Yamaha TTR125. It covers a wide array of topics, from routine maintenance procedures such as oil changes and chain adjustments to in-depth engine and transmission overhauls. Detailed sections on the fuel, ignition, exhaust, suspension, and braking systems are included, along with electrical system diagnostics and chassis service. Troubleshooting guides are provided to help diagnose and resolve common issues, ensuring your TTR125 remains in optimal condition. This manual is designed to assist owners, mechanics, and technicians in performing all necessary service and repair tasks with precision and confidence.