This manual covers Mercury Mariner Outboard engines produced between 1990 and 2000. Mercury Mariner outboard engines are renowned for their robust construction and reliable performance across a wide range of horsepower options, from 2.5hp to 275hp, catering to various boating needs. Whether you operate a smaller craft or a larger vessel, the engineering quality of these outboards ensures dependable operation for recreational and professional use. This Factory Service Repair Workshop Manual provides comprehensive guidance for maintaining and repairing your Mercury Mariner Outboard. It details essential procedures, including general information, safety guidelines, tool recommendations, maintenance schedules, and in-depth troubleshooting for fuel, ignition, electrical, lubrication, cooling, powerhead, lower unit, and trim and tilt systems. The manual also covers remote control and starter systems, equipping owners and technicians with the knowledge necessary to keep their engines in optimal condition.