This repair service manual covers the Mercury Mariner 40, 50, and 60hp 4-stroke EFI outboard engines manufactured in 2002. These engines are designed for reliable performance, featuring electronic fuel injection and robust construction for various marine applications. The manual provides comprehensive information to ensure optimal operation and longevity of your Mercury Mariner outboard. The purpose of this manual is to serve as a complete guide for maintenance, repair, and troubleshooting. It includes detailed procedures for routine servicing, component replacement, and in-depth overhauls. With high-quality, illustrated, step-by-step instructions, this manual is an essential resource for DIY enthusiasts, professional technicians, and workshops seeking to maintain and repair these specific Mercury Mariner models.