This manual covers the ATV from the first generation, produced between 2006 and 2012. The 450 is renowned for its utility and off-road prowess, featuring a 421 cc liquid-cooled, single-cylinder engine, selectable 2WD/4WD with a locking front differential, and independent front suspension. Its robust design, including a Roll-Over Protective Structure (ROPS) and three-point seatbelts, underscores a commitment to safety and reliability, making it a capable machine for work and recreation. This comprehensive workshop repair and service manual provides detailed, step-by-step instructions for all maintenance and repair procedures. It covers essential areas such as engine mechanicals, drivetrain, chassis, suspension, braking system, and electrical system, including detailed wiring diagrams. The manual also includes routine maintenance schedules, troubleshooting guides for common issues, and specifications for fluids and components. Its purpose is to empower owners and technicians with the knowledge needed to maintain, diagnose, and repair the 450 effectively, ensuring optimal performance and longevity.