This manual covers outboard engines manufactured between 1986 and 2003, including models such as the 6 HP, 8 HP, 9.9 HP, 10 HP, and 15 HP variants, as well as specialized Sail Mate, Sail Power, Sea Pro, Marathon, and XR/MAG/Viking configurations. These two-stroke outboard engines are known for their robust engineering and reliability, suitable for a wide range of boating applications. The manual addresses various engine components and systems, including the powerhead, driveshaft housing, gear housing, ignition, charging, starting, fuel delivery, and emission systems, among others. This comprehensive Service Repair Workshop Manual provides detailed, step-by-step instructions, accompanied by illustrations and diagrams, to guide both do-it-yourselfers and experienced mechanics through all aspects of engine maintenance and repair. It covers general maintenance, troubleshooting, complete disassembly and assembly procedures, adjustments, and specific system diagnostics. The manual also includes essential technical specifications and wiring diagrams, ensuring owners and technicians have the necessary information to maintain, repair, and optimize the performance of their outboard engines.