This manual covers the Monster 400 IE and 620 IE models produced for the 2006, 2007, and 2008 model years. Renowned for its iconic trellis frame and minimalist design, the Monster offers a distinctive naked sportbike experience. These models are powered by air-cooled, L-twin engines featuring desmodromic valve actuation and electronic fuel injection, providing a unique blend of character and accessible performance. The series has a strong heritage, building on a reputation for engineering quality and sporty motorcycles.

This comprehensive workshop manual provides detailed information for the maintenance, repair, and troubleshooting of your Monster. It covers all major systems, including the engine, fuel system, electrical system, chassis, suspension, and braking components. Inside, you will find step-by-step procedures for routine maintenance, complex repairs, and diagnostics, along with essential technical specifications and wiring diagrams. This manual is an indispensable resource for owners and technicians seeking to ensure the optimal performance, reliability, and longevity of their 2006-2008 Monster 400 IE and 620 IE.