This manual covers the Mercury Mariner 3.3 HP outboard engine. Designed for reliable performance on the water, this water-cooled, CDI ignition engine offers a robust 3.3 horsepower output. Its Mariner engine family heritage speaks to its enduring quality and dependable operation. The tiller handle steering provides intuitive control, and the forward, neutral, reverse gear selection ensures versatility in various boating conditions. This outboard is engineered for those who value consistent power and straightforward functionality in their marine applications. This Service Repair Manual is your comprehensive guide to understanding, maintaining, and repairing your Mercury Mariner 3.3 HP outboard. It details essential procedures for routine servicing, including recommended oil types, fuel mixture ratios, and fuel system information. Technical specifications and troubleshooting guidance are provided to assist owners and technicians in keeping the engine in optimal working condition. Adhering to the information within this manual will help ensure the longevity and peak performance of your Mercury Mariner outboard.