The Mercury Mariner 6 HP outboard motor, produced between 1986 and 2003, represents a reliable and robust option for various small watercraft. Designed with a 2-stroke, single-cylinder engine, this motor delivers 6 horsepower, making it suitable for propelling small dinghies, tenders, inflatable boats, and jon boats. Its water-cooled system and CDI ignition ensure efficient operation, while the gearcase offers Forward, Neutral, and Reverse selection for versatile maneuverability. The short shaft design is specifically suited for a 15-inch transom height, embodying practical engineering for its intended applications. This Factory Service Repair Manual provides comprehensive guidance for maintaining and repairing your Mercury Mariner 6 HP outboard. It covers essential procedures including lubrication of the lower unit, recommended fuel mixtures, and spark plug replacement, all vital for engine longevity and performance. Technical specifications, such as CDI ignition details and typical gear ratios, are included to aid in understanding the motor's mechanics. Safety guidelines and troubleshooting tips are also integrated to assist owners, mechanics, and technicians in ensuring the continued reliable operation of this dependable marine engine.