This document pertains to the Mercury Mariner 25 HP SeaPro outboard engine. Designed for demanding marine applications, this engine delivers reliable performance and robust power. Its engineering focuses on durability and efficiency, making it a dependable choice for various professional and recreational boating needs. This Service Repair Workshop Manual provides comprehensive guidance for the maintenance and repair of the Mercury Mariner 25 HP SeaPro. It covers essential procedures, technical specifications, and troubleshooting information to ensure optimal performance and longevity. Owners, technicians, and mechanics will find detailed instructions and diagrams to assist with routine servicing, component replacement, and system diagnostics, all presented in English.