This workshop service repair manual covers the Mercury Mariner Marathon outboard motor. Designed for reliable performance, this water-cooled, gasoline-powered unit delivers 10 HP and utilizes a spark ignition system. Its outboard lower unit features forward, neutral, and reverse gears, making it a versatile choice for various marine applications. The engineering behind the Mercury Mariner Marathon emphasizes durability and efficiency, ensuring a dependable boating experience. This comprehensive English-language manual provides essential information for maintaining and repairing your Mercury Mariner Marathon. It details critical maintenance procedures, including fluid capacities and service intervals, and offers troubleshooting guides to address potential issues. Technical specifications and diagrams are included to assist owners, mechanics, and technicians in understanding the unit's components and ensuring optimal operation. This manual is an indispensable resource for keeping your Mariner Marathon in peak condition.