This manual covers the Yamaha 4LH Outboard motor, manufactured in 1987. This 4-stroke gasoline outboard motor is designed for marine propulsion, representing a robust and reliable choice for boat owners. Its engineering is focused on delivering dependable performance for a variety of maritime applications. This comprehensive Service Repair Maintenance Manual in English provides detailed guidance for owners, mechanics, and technicians. It includes step-by-step procedures for disassembly, repair, assembly, and inspection, complemented by exploded diagrams for clarity. The manual is designed to be a handy, easy-to-read reference, covering all aspects of the motor to ensure optimal maintenance and longevity.