This manual covers Mercury Four-stroke Outboard models manufactured between 2000 and 2003, specifically addressing the 75, 90, 115, and 225 HP variants. These engines are recognized for their robust engineering and reliability, designed to provide dependable performance for a variety of marine applications. The comprehensive nature of this documentation ensures that owners and technicians have access to detailed information pertinent to these specific outboard motor generations. The purpose of this Service and Repair Manual is to provide extensive guidance for the maintenance, troubleshooting, and repair of your Mercury outboard. It includes detailed procedures for all major systems, including the powerhead, electrical components like the ignition and charging systems, fuel system, mid-section, and lower unit. With thousands of pages of information, complete with illustrations, photos, and diagrams, this manual serves as an essential resource for ensuring the optimal performance and longevity of your Mercury Four-stroke Outboard.