This manual covers the Mercury Mariner 25 HP SeaPro Outboard motor, specifically for serial numbers 0G044027 (US) and 09807909 (Belgium) and above. This outboard motor is engineered for reliable performance and durability, featuring water cooling and a CDI ignition system. Its fuel injection system, likely electronic, ensures efficient operation. Designed for demanding marine applications, this outboard provides robust propulsion and is equipped with features such as power trim and tilt, enhancing its versatility and ease of use. This comprehensive Service Repair Manual in English provides essential information for maintaining and repairing your Mercury Mariner 25 HP SeaPro Outboard. It details critical procedures, technical specifications, and troubleshooting guidance. Key areas covered include lubrication, recommended fluids, service intervals, and component specifics. By following the instructions within this manual, owners and technicians can ensure optimal performance, longevity, and safety of the outboard motor.