This service repair manual provides comprehensive information for the Mercury Mariner Sea Pro outboard engine. Engineered for reliable performance, this gasoline-powered engine delivers 15 horsepower, utilizing a water-cooled system for optimal operation. Its robust construction and design are intended to provide dependable service in various marine applications, reflecting Mercury's commitment to quality and durability in marine propulsion. This manual is designed to assist owners, technicians, and mechanics in understanding, maintaining, and repairing the Mercury Mariner Sea Pro. It covers essential areas including detailed maintenance procedures, troubleshooting guides, technical specifications, and important safety precautions. By following the instructions and information contained within, users can ensure the continued optimal performance and longevity of their Mercury outboard engine.