This manual covers the Ducati 900 Monster (M900) and its variants (M900, M900i.e., M900S) produced between 1994 and 2004. Renowned for its distinctive Italian design, torquey L-twin engine, and minimalist aesthetic, the 900 Monster is a celebrated naked sportbike that helped define its segment. Its engineering quality is evident in the signature Desmodromic valve actuation system and the lightweight, rigid steel trellis frame, contributing to its iconic status and performance.

This comprehensive Workshop Service Manual (WSM) provides detailed information for the maintenance, repair, and troubleshooting of your Ducati 900 Monster. It covers all major systems, including the air-cooled Desmodromic L-twin engine, fuel system (carburetor and fuel injection), transmission, brakes, electrical system, and chassis. The manual includes routine maintenance procedures, engine and transmission overhaul instructions, suspension and brake system servicing, electrical diagnostics, and troubleshooting guidance, ensuring owners and technicians can effectively maintain and preserve the performance and reliability of this iconic motorcycle.