This workshop service and repair manual covers Mercury Mariner Outboard models from 1997 onwards. These 2-stroke gasoline-powered outboards are known for their robust engineering and reliability, offering horsepower options of 90HP and 100HP. Designed for a wide range of marine applications, these engines provide dependable performance for boating enthusiasts and professionals alike. This comprehensive manual, presented in English and estimated to contain thousands of pages, provides essential information for maintaining and repairing your Mercury Mariner Outboard. It includes detailed step-by-step repair procedures, factory diagnostic procedures, torque settings, fluid capacities, wiring diagrams, and detailed illustrations. The manual is designed to assist owners, mechanics, and technicians in performing all service and repair tasks, ensuring the longevity and optimal performance of the outboard.