This repair manual covers Yamaha 50HP, 60HP, 70HP, 75HP, 80HP, and 90HP 2-stroke outboard motors manufactured between 1996 and 2010. These reliable outboard motors are engineered for a wide range of marine applications, offering dependable performance and efficiency. This guide is essential for anyone seeking to maintain or repair these specific Yamaha models, ensuring their continued optimal operation on the water. The purpose of this English-language repair manual is to provide comprehensive guidance for the repair and maintenance of your Yamaha outboard motor. It details essential procedures, including routine maintenance, engine and fuel system servicing, lubrication, cooling, transmission, steering, and electrical systems. Additionally, it offers advanced troubleshooting techniques and parts lookup information, making it an indispensable resource for owners and technicians alike to effectively service and repair these powerful 2-stroke engines.