This manual covers the KTM 125 EXC, SX, and Duke, as well as the KTM 200 EXC, SX, and Duke models produced between 1999 and 2003. These motorcycles are renowned for their lightweight construction, potent small-displacement engines, and sporty handling, making them ideal for both off-road adventures and spirited street riding. Building on KTM's strong heritage in racing, these models offer a direct connection to performance engineering, characterized by advanced suspension systems, robust chassis, and distinctive styling that has earned them a dedicated following among enthusiasts.

This comprehensive workshop service repair manual provides detailed guidance for owners, mechanics, and technicians. It covers all essential aspects of maintenance, troubleshooting, and repair, including in-depth procedures for engine disassembly and assembly, transmission servicing, fuel and ignition system adjustments, electrical system diagnostics, chassis and suspension overhauls, and brake system maintenance. With clear instructions and technical specifications, this manual is an indispensable resource for ensuring the optimal performance, reliability, and longevity of your KTM 125 or 200 series motorcycle.