This manual covers the Mercury Mariner outboard motor, a 4-stroke gasoline-powered unit designed for marine propulsion. While specific production years are not detailed, this service repair manual provides comprehensive information for maintaining and operating this reliable marine engine. Its engineering focuses on delivering consistent performance for various boating applications. The purpose of this English-language manual is to serve as a definitive guide for owners, technicians, and mechanics. It details essential maintenance procedures, troubleshooting steps, and technical specifications necessary for the upkeep of the Mercury Mariner outboard motor. By following the guidelines within this document, users can ensure optimal performance, longevity, and safety of the unit.