This comprehensive workshop service manual provides detailed instructions and technical specifications for the Mercury Mariner Marathon 75 outboard motor. It is designed to assist experienced mechanical technicians in performing a wide range of service and repair procedures. The manual covers everything from routine maintenance tasks like oil changes and spark plug replacement to complex engine overhauls and troubleshooting electrical systems. This essential resource will equip technicians with the knowledge and guidance necessary to diagnose issues, perform repairs, and ensure optimal performance of the Mercury Mariner Marathon 75 outboard motor.

The Mercury Mariner Marathon 75 is a dependable and robust 75 horsepower outboard motor designed for a variety of recreational boating activities. This model, produced by Mercury Marine, is part of the Mariner line, known for its reliability and value. The Marathon 75 is a four-stroke engine, renowned for its smooth operation and fuel efficiency. It boasts a single-cylinder design, offering simplicity and ease of maintenance. The engine features a durable cast-iron cylinder block and aluminum cylinder head, ensuring long-lasting performance even under demanding conditions. The Marathon 75 is known for its impressive power-to-weight ratio, making it an ideal choice for smaller boats, pontoons, and inflatable boats. The Mercury Mariner Marathon 75 comes equipped with several features designed to enhance user experience and performance. These include a large-capacity fuel tank, ensuring extended run times without frequent refueling. The engine also benefits from a robust cooling system, crucial for maintaining optimal operating temperatures. Additionally, the Marathon 75 includes a reliable electric starting system, making engine ignition effortless. The engine's controls are intuitive and user-friendly, making it easy for both experienced and novice boaters to operate. With its combination of power, efficiency, and user-friendliness, the Mercury Mariner Marathon 75 emerges as a popular choice for recreational boaters seeking a reliable and dependable outboard motor for their aquatic adventures.