This manual covers the Mercury Mariner Marathon outboard motor, a water-cooled unit producing 10 horsepower. Designed for marine applications, this motor represents a commitment to reliable performance on the water. Its robust construction and efficient power delivery make it a suitable choice for various boating needs. This comprehensive Factory Service Repair Manual in English provides detailed information for the maintenance and repair of your Mercury Mariner Marathon. It includes essential procedures, technical specifications, and troubleshooting guidance to ensure optimal operation and longevity of the outboard motor. Owners, mechanics, and technicians will find this manual an invaluable resource for understanding and servicing the unit.