This workshop repair manual provides comprehensive information for the Mercury Mariner Marathon outboard motor, a 75 HP model. While specific production years are not detailed, this manual is designed to cover a particular generation of this reliable and powerful marine engine. The Mariner Marathon is engineered for robust performance on the water, suitable for a variety of boating applications. Its design emphasizes durability and efficiency, making it a trusted choice for recreational and professional use. This English-language workshop manual serves as an essential guide for maintaining and repairing your Mercury Mariner Marathon outboard. It details critical procedures, technical specifications, and troubleshooting steps necessary for optimal engine operation. Coverage includes essential maintenance tasks, component identification, and repair instructions, ensuring that owners, mechanics, and technicians have the resources needed to keep the engine in peak condition. The manual aims to facilitate effective service and longevity for the 75 HP Mariner Marathon.