The Yamaha YZ250, a celebrated 2-stroke motocross machine, has been a benchmark in its class since its inception. For the 2006 model year, this high-performance competition bike features an aluminum bilateral beam frame for exceptional rigidity and light weight, complemented by advanced KYB Speed Sensitive System (SSS) front forks and a KYB Monocross rear shock for superior damping and adjustability. Its potent 249cc liquid-cooled engine is enhanced by the Yamaha Power Valve System (YPVS), optimizing power delivery across the RPM range for competitive advantage. Designed for motocross racers and off-road enthusiasts, the YZ250 embodies Yamaha's commitment to performance, reliability, and innovation in the demanding world of off-road racing.
This comprehensive workshop service manual provides essential information for the maintenance, repair, and troubleshooting of the 2006 Yamaha YZ250. It covers all critical systems, including complete engine overhaul procedures, carburetor tuning, cooling system service, clutch and transmission maintenance, and detailed guidance on suspension (front and rear) and braking systems. The manual also includes extensive electrical system diagnostics, wiring diagrams, and troubleshooting guides for common issues. With step-by-step instructions, torque specifications, and fluid recommendations, this manual is an indispensable resource for owners, mechanics, and technicians aiming to maintain the YZ250's peak performance and longevity.