This manual covers the Yamaha Marine 115C and 130C outboard models manufactured between 2003 and 2006. These engines are designed for reliable performance on the water, offering distinct horsepower options to suit various boating needs. Yamaha Marine is recognized for its engineering quality and commitment to durability, ensuring these outboards provide dependable service for their intended applications. The scope of this Factory Service Repair Manual is comprehensive, providing essential information for the maintenance and repair of your Yamaha Marine outboard. It includes detailed step-by-step repair procedures, advanced troubleshooting guides, diagnostic information for engine and electrical systems, and clear wiring diagrams. With hundreds of illustrations, diagrams, and photos, this manual serves as an indispensable resource for owners, mechanics, and technicians seeking to maintain and restore the optimal performance and longevity of their 115C or 130C outboard.