This manual covers the Yamaha 150ETLH, a V6 outboard motor produced in 1987. This water-cooled, carbureted engine delivers 150 horsepower with a 2.6-liter displacement, designed for reliable marine propulsion. Its robust engineering and proven performance make it a dependable choice for various boating applications. This comprehensive Service Repair Maintenance Manual provides detailed instructions for the disassembly, repair, assembly, and inspection of your Yamaha 150ETLH. It includes essential technical specifications, maintenance schedules, troubleshooting guidance, and safety precautions. This resource is designed to assist owners, mechanics, and technicians in maintaining the optimal performance and longevity of the outboard motor.