This service manual covers a range of Yamaha outboard motors, including models such as C115X, S115X, 115X, S130X, 100A, E115A, 115B, 115C, 115F, 130B, L130B, 140B, B115X, and L130X. These engines are engineered for reliable performance, featuring in-line 4-cylinder configurations for 115/130 HP variants, 1730cc displacement, fuel injection (EFI), CDI ignition, and water cooling systems. Designed for diverse marine applications worldwide, including the USA and Canada, these Yamaha outboards are built with a focus on durability and efficiency.

This comprehensive service manual provides essential information for the maintenance and repair of your Yamaha outboard motor. It details critical procedures, technical specifications, troubleshooting guidance, and safety precautions necessary for optimal performance and longevity. Covering aspects from routine lubrication with specified gear oil to identifying correct spark plug types, this manual is an indispensable resource for owners, mechanics, and technicians seeking to understand and service these powerful marine engines.