The Mercury Mariner 9.9 HP 2-Stroke outboard motor, manufactured between 1986 and 2003, is a reliable and efficient power source designed for a variety of small watercraft. This water-cooled, 2-stroke engine, featuring carburetor fuel delivery and a power output of 9.9 horsepower, is ideal for small inflatables, jon boats, canoes, and dinghies up to 14 feet in length. Its robust engineering ensures dependable performance for recreational boating, fishing, and auxiliary propulsion needs, offering a balance of power and portability. This comprehensive service repair manual provides essential information for the maintenance and repair of your Mercury Mariner 9.9 HP 2-Stroke outboard motor. It covers critical procedures, technical specifications, and troubleshooting guidance necessary for owners and technicians. Inside, you will find detailed instructions on routine maintenance, fluid changes, component servicing, and diagnostic procedures, all presented in English to ensure clarity and ease of use. This manual is an indispensable resource for keeping your outboard motor operating at peak performance and longevity.