This manual covers the Mercury Mariner 25 HP SeaPro outboard engine. Engineered for reliability and performance, this water-cooled engine is designed to meet the demands of various marine applications. Its robust construction and efficient operation ensure a dependable power source for your boating needs. This Factory Service Repair Manual provides comprehensive guidance for the maintenance, repair, and troubleshooting of your Mercury Mariner 25 HP SeaPro. It includes detailed procedures, technical specifications, and essential safety information. Owners, technicians, and mechanics will find the information necessary to keep this outboard engine operating at peak performance and to address any issues that may arise.