This workshop service repair manual covers Mercury Mariner outboard engines manufactured between 1997 and 2001. These 2-stroke, water-cooled engines are available in 40hp, 50hp, 55hp, and 60hp variants, featuring a carbureted fuel induction system and a standard outboard lower unit for propulsion. The Mariner line is recognized for its robust engineering and reliable performance, making it a trusted choice for various marine applications. This manual provides comprehensive information to ensure optimal operation and longevity of your Mercury Mariner outboard. The purpose of this manual is to serve as a complete guide for maintenance, repair, and troubleshooting of your Mercury Mariner outboard. It details all A-Z service and repair procedures, including information on the trim and tilt system. The manual also includes a troubleshooting guide to help diagnose and resolve common issues. Technical specifications and maintenance schedules are provided to assist owners, mechanics, and technicians in keeping the engine in peak condition. This resource is designed to facilitate efficient and accurate servicing, ensuring the continued reliability and performance of your Mercury Mariner outboard.