This manual covers the 620 series motorcycles, including the 620 Sport, 620 Monster, and 620 Multistrada, produced between 1999 and 2004. These models are characterized by their air-cooled, L-twin (Desmodue) engines, featuring signature Desmodromic valve actuation. Renowned for their distinctive Italian design, engaging handling, and the unique character of their L-twin powerplants, the 620 series offered an accessible entry into performance heritage. They are built with a steel trellis frame, known for its rigidity and contribution to the bikes' agile performance, making them a popular choice for riders seeking a blend of style and dynamic riding experience.

This comprehensive workshop service repair manual provides in-depth guidance for owners and technicians. It covers all essential maintenance procedures, from routine tasks like oil changes and valve clearance checks to major overhauls of the engine, transmission, and braking systems. Detailed sections on troubleshooting, diagnostic procedures, and electrical system analysis, supported by comprehensive wiring diagrams, are included. The manual also offers extensive technical specifications for all components, ensuring accurate repairs and optimal performance. Its purpose is to facilitate the effective maintenance, repair, and understanding of the 620 models, empowering users to keep their motorcycles in peak condition.