This comprehensive workshop manual provides detailed instructions and step-by-step diagrams for servicing and repairing your MERCURY MarineR OUTBOARD 25HP MARATHON engine, covering models from 1998 onwards. It's the same manual used by official dealer workshops, offering expert guidance on everything from simple tasks like replacing spark plugs to complex procedures like engine rebuilds. Within its pages, you'll find a wealth of information, including electrical diagrams, torque settings, fluid capacities, and detailed descriptions of every service and repair procedure. This manual is your ultimate resource for maintaining and repairing your outboard motor, empowering you with the same level of expertise used by professional technicians and mechanics.

The MERCURY MarineR OUTBOARD 25HP MARATHON is a reliable and popular outboard motor designed for a variety of recreational boating applications. Known for its durability and ease of maintenance, the 25HP Marathon is a great choice for small boats, dinghies, and inflatables. It offers a balance of power and fuel efficiency, making it suitable for fishing, cruising, and light-duty watersports. The Marathon is a single-cylinder, four-stroke engine, renowned for its smooth operation and quiet running. It features a robust design, with components built to withstand the harsh marine environment. The MERCURY MarineR OUTBOARD 25HP MARATHON is renowned for its user-friendly features and accessible maintenance. Its design prioritizes ease of access to key components, simplifying routine maintenance tasks. The motor features a straightforward cooling system, ensuring optimal engine temperature and performance. Additionally, the Marathon is equipped with a reliable ignition system and a durable fuel system, contributing to its overall dependability. The engine's compact size and lightweight construction make it easy to handle and install, further contributing to its practicality. With readily available parts and a strong network of authorized service centers, the MERCURY MarineR OUTBOARD 25HP MARATHON offers peace of mind and long-term performance for boaters.