This workshop service repair manual covers Mercury Outboard motors manufactured from 2002 onwards, specifically focusing on the 3 Litre engine variants. These robust outboard motors are engineered for reliability and performance, offering power outputs of 225 HP and 250 HP. Designed for demanding marine applications, they represent a significant advancement in outboard motor technology, providing efficient fuel injection and water cooling systems for optimal operation in various conditions. This comprehensive manual is designed to assist owners and technicians with all aspects of maintenance and repair. It includes detailed exploded views, diagrams, illustrations, and step-by-step instructions for disassembly, reassembly, and adjustments. You will find essential technical specifications, troubleshooting guides for common issues, and procedures for DIY servicing, teardowns, and overhauls, ensuring your Mercury Outboard motor remains in peak operating condition.