This manual covers the 1979 120 HP Outboard, a product of historical outboard engine offerings. Engineered for reliability and performance, this engine was designed to provide dependable power for boat owners. Its robust construction and straightforward operation made it a popular choice for recreational boating during its production era. This workshop manual provides comprehensive information for maintaining and repairing this classic marine engine, ensuring its continued service on the water. The purpose of this comprehensive service repair workshop manual is to provide boat owners with basic mechanical skills and independent service professionals with all the necessary information for the maintenance, troubleshooting, and repair of the 1979 120 HP Outboard. It includes detailed step-by-step instructions, diagrams, illustrations, and wiring schematics covering the engine's mechanical and electrical systems, drivetrain, and control systems. From routine tune-ups and oil changes to complex overhauls of the powerhead and carburetor, this manual serves as an authoritative guide, enabling users to perform repairs accurately and efficiently, thereby potentially saving significant costs.