This repair service manual covers Mercury Mariner Outboard models with horsepower ranging from 70 HP to 115 HP. These engines are engineered for reliable performance in marine applications. While specific production years are not detailed, the manual provides comprehensive information for these versatile outboard units. This manual is designed to assist both professional technicians and do-it-yourself mechanics with the maintenance and repair of your Mercury Mariner Outboard. It includes step-by-step repair procedures, critical specifications, maintenance schedules, disassembly and assembly instructions, and cleaning guidelines. With basic knowledge of electrical and mechanical concepts, users can effectively maintain their engines using the detailed information and illustrations provided.