This manual covers the Yamaha 30 ELHV outboard motor, manufactured in 1997. Designed for marine propulsion, this 30 horsepower, 2-stroke, water-cooled engine utilizes a CDI ignition system and an outboard drive. Its reliable engineering and robust construction make it a dependable choice for various aquatic applications. The fuel system requires a 50:1 gasoline to oil mixture, with Yamaha 2M Outboard Oil recommended for optimal performance. The purpose of this Factory Service Manual is to provide comprehensive guidance for the maintenance and repair of your Yamaha 30 ELHV outboard motor. It details essential procedures, including step-by-step disassembly, repair, assembly, and inspection processes. The manual also includes technical specifications, safety guidelines, and troubleshooting information, supported by exploded diagrams to aid in understanding. This resource is invaluable for owners, mechanics, and technicians seeking to ensure the longevity and optimal performance of their marine propulsion unit.