This repair manual covers Yamaha 2-stroke outboard motors manufactured between 1996 and 2009, specifically models with 60 HP, 75 HP, and 90 HP. These water-cooled, gasoline-powered engines are designed for marine applications and boating. Yamaha is recognized for its engineering quality and reliability in the outboard motor industry, offering robust performance for a variety of watercraft. This manual details the inline engine configuration and provides comprehensive information for maintaining these dependable marine propulsion systems. The purpose of this repair manual is to provide detailed guidance for the service, repair, and routine maintenance of the specified Yamaha outboard motors. It covers a wide range of topics, including general information, engine removal and installation, fuel and lubrication systems, cooling systems, electrical systems, and advanced troubleshooting. This document serves as an essential resource for owners, mechanics, and technicians, enabling them to effectively maintain and repair their Yamaha outboard motors, ensuring optimal performance and longevity.