This workshop service manual covers the Mercury Mariner outboard motor, a powerful and reliable 75 HP gasoline engine. Designed for a variety of marine applications, this inline 4-cylinder motor offers robust performance with a displacement of 105.7 cubic inches (1.7 L). Its water-cooled system and CDI ignition ensure efficient operation, making it a dependable choice for boating enthusiasts and professionals alike. This manual provides comprehensive guidance for technicians on the repair and overhaul of the Mercury Mariner outboard motor. It details essential maintenance procedures, including lubrication, fuel, and spark plug recommendations, along with critical technical specifications and service intervals. By following the instructions within this manual, technicians can ensure the continued optimal performance and longevity of the Mercury Mariner outboard motor.