This workshop service repair manual covers the Mercury Mariner 100 HP Outboard, manufactured between 1988 and 1993. This gasoline-powered, water-cooled, 4-cylinder outboard engine delivers 100 horsepower and features a CD ignition system. Designed for marine applications, the Mercury Mariner outboard is known for its robust engineering and reliable performance, making it a dependable choice for various boating needs. This comprehensive manual provides detailed information essential for the maintenance and repair of your Mercury Mariner 100 HP Outboard. It includes in-depth procedures for all major mechanical systems, troubleshooting guides to diagnose and resolve issues, and technical specifications for accurate service. The manual is written in English and is intended to assist owners, technicians, and mechanics in ensuring the longevity and optimal operation of the outboard engine.