This comprehensive manual covers 2-stroke outboard motors manufactured between 2001 and 2009, offering marine propulsion across a wide range of horsepower from 2.5 to 250 HP. The lineup includes 1-4 cylinder and V6 configurations, with a focus on the Optimax series. These engines are engineered for reliable performance in demanding marine environments, providing dependable power for various boating applications. This English-language service manual, spanning 681 pages, is an essential resource for maintaining and repairing your outboard motor. It details general information, safety guidelines, necessary tools, and step-by-step procedures for tune-ups, fuel systems (both carbureted and EFI), lubrication, cooling, powerhead, lower unit, and electrical systems, including ignition and charging. With exploded views and clear instructions, this manual empowers owners and technicians to ensure optimal operation and longevity of their marine engine.