This service repair manual covers Mercury Mariner 75HP / 90HP Outboard 4-Stroke engines, starting from the 2000 model year and serial number 0G960500. These engines are engineered for reliable performance, offering robust power for a variety of marine applications. The manual provides comprehensive information designed to ensure the optimal operation and longevity of your Mercury Mariner outboard. The purpose of this manual is to provide detailed guidance for the repair, service, restoration, maintenance, rebuilding, and diagnosis of the specified Mercury Mariner outboard engines. It includes clear, step-by-step instructions, color diagrams, exploded views, and detailed part breakdowns, along with a troubleshooting guide. This resource is intended for professional technicians, mechanics, workshops, and DIY individuals seeking to maintain and repair their equipment effectively.