This Service Repair Manual covers the 1997 Mercury Mariner outboard motor, identified by serial numbers 0G438000 and above. This water-cooled, gasoline-powered motor features a 3-cylinder engine producing 75 horsepower with a CDI ignition system and exhaust routed through the propeller hub. Engineered for reliability, the Mariner is designed for marine applications, offering robust performance and durability on the water. Its power trim and tilt system further enhances operational versatility. This comprehensive manual provides essential information for maintaining and repairing your Mercury Mariner. It details crucial maintenance procedures, including recommended oil types, spark plug specifications, and gap settings. Technical specifications and troubleshooting guidance are also included to assist owners, mechanics, and technicians in diagnosing and resolving issues. The English-language manual is designed to ensure the longevity and optimal performance of your outboard motor.