This workshop repair service manual covers the Mercury Mariner 55 HP SeaPro outboard engine. Designed for marine applications, this water-cooled, carbureted engine features a CDI ignition system and delivers 55 horsepower. Its robust construction and reliable performance make it suitable for a variety of demanding maritime tasks. While specific model years are not detailed, this manual provides comprehensive information applicable to all Mercury Mariner 55 HP SeaPro configurations. This comprehensive English-language manual serves as an essential resource for maintaining and repairing your Mercury Mariner 55 HP SeaPro outboard. It details critical maintenance procedures, including lubrication requirements, fuel system upkeep, ignition system servicing, and cooling system maintenance. Furthermore, the manual includes diagnostic procedures and guidance for troubleshooting common issues. By following the instructions and specifications within this manual, owners and technicians can ensure optimal performance and longevity of the engine.