This manual provides comprehensive information for the Monster 620, a naked sportbike produced primarily between 2001 and 2006. As part of an iconic Monster lineage, the M620 embodies a philosophy of minimalist design, featuring a distinctive trellis frame and a characterful 618 cc air-cooled L-twin engine with desmodromic valve actuation. This model was designed to offer an accessible entry point into the world of performance motorcycles, blending stylish aesthetics with engaging performance suitable for both urban environments and spirited riding. Its engineering emphasizes rider connection and mechanical beauty, hallmarks of Italian engineering.

The scope of this manual covers essential owner and user information, detailing the operation and basic maintenance of the Monster 620. It includes guidance on engine systems, transmission, clutch, chain drive, chassis, suspension, brakes, and the electrical system. Key procedures such as routine maintenance tasks like oil changes, chain adjustments, and spark plug checks are thoroughly explained. Additionally, the manual offers insights into user adjustments, basic troubleshooting for common issues, and understanding instrument panel functions. This resource is designed to assist owners and technicians in maintaining the reliability and performance of their Monster 620.