This manual provides comprehensive guidance for the Ducati Supersport 900ss, a celebrated model from the first generation of Ducati's V-twin Desmodromic motorcycles. Produced in Bologna, Italy, the 900SS, also known by its chassis code 750/900SS, is renowned for its iconic air-cooled 90-degree L-twin engine featuring desmodromic valve actuation. This engineering marvel, coupled with sporty chassis geometry and dual front disc brakes, established Ducati's reputation for performance and handling. Covering production years from 1975 to 1977, this motorcycle competed against other performance twins and inline-fours of its era, distinguishing itself with its unique desmo system and soulful character, making it a landmark sportbike in motorcycle history.

This Factory Service Repair Manual is designed to assist owners, mechanics, and technicians in maintaining and repairing the Ducati Supersport 900ss. It offers detailed coverage of all major systems, including the engine, transmission, clutch, fuel and ignition systems, electrical components, chassis, suspension, and brakes. The manual includes step-by-step procedures for routine maintenance, engine overhauls, carburetor adjustments, desmodromic valve clearance checks, and electrical system troubleshooting. Comprehensive technical specifications, torque values, electrical schematics, and diagnostic procedures are provided to ensure factory-level repairs and optimal performance.