This Service Repair Workshop Manual provides comprehensive information for the Mercury Mariner, a 4-stroke outboard engine designed for reliable performance. This engine delivers 6 HP and features a water-cooled system, CDI ignition, and carbureted fuel induction. Its robust construction and straightforward design ensure dependable operation, making it suitable for a variety of boating applications. The Mariner is equipped with a tiller handle for intuitive steering and throttle control, a manual recoil starter for easy ignition, and offers Forward, Neutral, and Reverse gear selection. This manual is an essential resource for owners and technicians, detailing all aspects of maintenance, repair, and troubleshooting. It covers routine service procedures, including recommended intervals for spark plug and water pump impeller replacement, as well as gearcase lubrication. Technical specifications, electrical system information, fuel system details, and safety guidelines are thoroughly explained. By following the instructions within this guide, users can ensure the longevity, optimal performance, and safe operation of their Mercury Mariner outboard engine.