This manual covers the Yamaha 150ETLF outboard motor, manufactured in 1989. Designed for marine propulsion, this 150 horsepower, 2-stroke engine represents a significant advancement in outboard motor technology, built with Yamaha's renowned engineering quality and commitment to reliability. Its robust construction and performance capabilities make it a dependable choice for various marine applications. This comprehensive Service Repair Maintenance manual provides detailed instructions for the disassembly, repair, assembly, and inspection of your Yamaha 150ETLF outboard motor. It includes exploded diagrams to aid in understanding component relationships and offers a step-by-step format for ease of use. This guide is an essential resource for owners, mechanics, and technicians seeking to maintain and repair the unit, ensuring its optimal performance and longevity.