This manual covers the Yamaha 90ETLD outboard motor, a 90 horsepower gasoline-powered marine propulsion unit from 1990. Engineered for reliability and performance, this 2-stroke engine represents a robust solution for various marine applications. Its design prioritizes durability and efficient operation, making it a trusted choice for boaters seeking dependable power on the water. The scope of this service repair maintenance manual is comprehensive, providing detailed, step-by-step procedures for disassembly, repair, assembly, and inspection. It includes exploded diagrams to aid in understanding complex components and is fully bookmarked for easy, searchable access. This English-language guide is an essential resource for owners, mechanics, and technicians, offering the necessary information to maintain the Yamaha 90ETLD outboard motor in optimal condition and ensure its continued performance and longevity.