The Yamaha YZ125, a renowned motocross and off-road competition machine, has been a staple in the 125cc class since its inception. For the 2007 model year, this versatile motorcycle features an aluminum bilateral beam frame for enhanced rigidity and lightweight handling, coupled with industry-leading KYB SSS front forks and Yamaha's acclaimed Monoshock rear suspension system for superior control and rider comfort. Its 124cc liquid-cooled, 2-stroke single-cylinder engine delivers strong mid-range power and sharp throttle response, making it a formidable contender on the track. With a rich heritage in motocross, the YZ125 has consistently evolved, offering a blend of performance and reliability that has earned it numerous accolades within the off-road community.

This comprehensive workshop service repair manual provides detailed guidance for the Yamaha YZ125, covering essential maintenance, troubleshooting, and repair procedures. Within its 500+ pages, owners and technicians will find in-depth information on all major systems, including engine disassembly and assembly, cooling, fuel, ignition, and transmission systems. Specific sections address suspension servicing, brake overhauls, and electrical system diagnostics, alongside detailed procedures for chassis and bodywork maintenance. The manual is designed to assist users in performing everything from routine checks and lubrication to complete engine rebuilds and performance tuning, ensuring the optimal operation and longevity of the vehicle across Italy, France, and Germany.