This manual covers the Ducati 450 Mark 3, produced between 1967 and 1970. Renowned for its innovative Desmodromic valve actuation, this single-cylinder motorcycle offered a blend of sporty performance and Italian craftsmanship, appealing to enthusiasts of classic European motorcycles. Its robust construction and unique engine technology set it apart in its market segment, making it a significant model in Ducati's history. This comprehensive factory service repair manual provides detailed information for the maintenance, repair, and restoration of the Ducati 450 Mark 3. It covers all major systems, including the engine, fuel system, transmission, electrical components, chassis, brakes, and suspension. With step-by-step instructions, diagnostic procedures, troubleshooting guides, and factory specifications, this manual is an essential resource for owners, mechanics, and technicians seeking to maintain the optimal performance and longevity of their vintage Ducati.