This technical workshop manual covers Mercury Mariner Outboard models from 1997 onwards, including engine options of 40HP, 50HP, 55HP, and 60HP. These 2-stroke, water-cooled outboard engines are designed for reliable performance in marine applications. The manual provides comprehensive information for maintaining and repairing these units, ensuring their continued operational efficiency. This manual serves as an essential resource for owners, mechanics, and technicians. It details service, repair, restoration, and diagnostic procedures, accompanied by clear, step-by-step instructions, exploded views, diagrams, and specifications. Included are preventative maintenance schedules and a troubleshooting guide to assist with immediate problem resolution, enabling accurate adjustments and comprehensive upkeep of your Mercury Mariner Outboard.