This service manual covers the Mercury Mariner outboard motor, manufactured between the years 2000 and 2005. This water-cooled, 4-stroke engine delivers 90 horsepower from its 4-cylinder configuration and features a CDI ignition system along with Power Trim and Tilt. Designed for reliable performance, the Mercury Mariner is engineered to provide dependable propulsion for a variety of marine applications. The purpose of this manual is to provide comprehensive guidance for the repair and overhaul of your Mercury Mariner outboard. It details essential maintenance procedures, including lubrication and fuel system requirements, and offers technical specifications to ensure proper operation. By utilizing the information contained within, owners and technicians can effectively maintain and repair the motor, ensuring its longevity and optimal performance.