This manual covers the Yamaha LX150X marine outboard. It is designed to provide comprehensive information for the maintenance and repair of this specific model. The engineering quality and reliability of Yamaha outboards are well-established, and this manual aims to help owners and technicians preserve those standards through proper care and servicing.

The scope of this document encompasses essential areas including general information, detailed specifications, periodic inspection and adjustment procedures, and in-depth coverage of the fuel system, power unit, lower unit, bracket unit, and electrical system. Furthermore, it includes a valuable section on trouble analysis to assist in diagnosing and resolving issues. This manual serves as a critical resource for ensuring the optimal performance and longevity of your Yamaha LX150X outboard.