The 2008 Yamaha YZ125, a variant identified as YZ125(X)/X1 with chassis and engine code 4JT, is a testament to Yamaha's legacy in high-performance motocross motorcycles. Engineered for competition and demanding off-road use, this 124cc, liquid-cooled, 2-stroke machine delivers exceptional power and handling. Its design emphasizes a lightweight yet robust aluminum alloy frame, providing riders with precise control and durability. Known for its nimble chassis dynamics and responsive suspension, the YZ125 has consistently been a favored choice for riders seeking a competitive edge in the 125cc motocross class, building upon decades of Yamaha's refinement in off-road racing technology.

This comprehensive Workshop Service Repair Manual is designed to empower owners, enthusiasts, and professional technicians in the maintenance and repair of the 2008 Yamaha YZ125. Covering a wide array of systems, including detailed engine disassembly and assembly, fuel and electrical systems, and chassis components like suspension and brakes, this manual provides essential guidance. It includes step-by-step procedures for routine maintenance, adjustments, tuning, and complex rebuilds, alongside in-depth troubleshooting guides and diagnostic charts. Available in English, French, and German, this high-quality, printable manual ensures that users have the technical information necessary to keep their YZ125 performing at its peak.