This manual covers the Yamaha 4 LF Outboard motor, manufactured in 1989. As a 4-stroke outboard motor designed for marine propulsion, this unit exemplifies Yamaha's commitment to reliable and efficient engineering. Its robust construction and straightforward operation make it a dependable choice for various boating applications. This Factory Service Manual, written in English, provides comprehensive guidance for maintaining and repairing your Yamaha 4 LF Outboard. It includes detailed, step-by-step procedures for disassembly, assembly, and inspection, supported by exploded diagrams. The manual is searchable and bookmarked for easy navigation, ensuring that owners, mechanics, and technicians have all the necessary information to keep the outboard motor in optimal condition.