This manual covers the Mercury Mariner 15 HP outboard engine. Designed for reliable performance on the water, this gasoline-powered, water-cooled engine delivers 15 horsepower. Its versatile throttle control system can be operated via remote or tiller, making it suitable for a variety of boating applications. The outboard lower unit features forward, neutral, and reverse gears, providing essential maneuverability. This Factory Service Repair Manual provides comprehensive guidance for maintaining and repairing your Mercury Mariner 15 HP outboard. It details essential procedures, technical specifications, and safety information necessary for optimal operation. Whether you are an owner performing routine checks or a technician undertaking complex repairs, this manual serves as an indispensable resource for ensuring the longevity and performance of your marine engine.