This workshop repair manual provides comprehensive technical information for Mercury Mariner Outboard engines manufactured from 2000 onwards. These robust outboard engines are engineered for reliability and performance, offering power options of 4 HP, 5 HP, and 6 HP. The manual covers essential aspects of these engines, including their ignition and cooling systems, as well as details on the outboard lower unit and gear ratios, ensuring users have access to the necessary data for maintaining and operating their Mercury Mariner Outboard. The purpose of this extensive manual, spanning thousands of pages, is to serve as the definitive resource for owners, technicians, and mechanics. It details all aspects of service and repair, including maintenance intervals, fluid capacities, recommended oil types, spark plug replacement, engine rebuilding procedures, and critical torque settings. Furthermore, the manual includes diagnostic procedures, electrical diagrams, and troubleshooting guides, all presented in English. Written by the manufacturer, this manual offers the most accurate and complete information available for the Mercury Mariner Outboard series.