This manual covers the Mercury Mariner outboard motor, a reliable and efficient propulsion system designed for a variety of watercraft. Engineered for performance and durability, the Mariner series offers a robust solution for recreational boating and light commercial applications. Its water-cooled, gasoline-powered engine, typically a 2-stroke with a single or twin cylinder configuration, delivers a consistent 8 horsepower. Key features include a tiller handle with integrated throttle control and a Forward, Neutral, Reverse (F-N-R) gear system, ensuring user-friendly operation and precise maneuverability on the water. The purpose of this comprehensive Service Repair Manual is to provide essential information for the maintenance, repair, and troubleshooting of your Mercury Mariner outboard motor. It details critical procedures, technical specifications, and safety guidelines necessary to keep your motor operating at peak performance. Owners, technicians, and mechanics will find detailed instructions on lubrication, scheduled maintenance intervals, ignition systems, and more. This manual serves as an indispensable resource for ensuring the longevity and optimal function of your Mercury Mariner outboard motor.