This manual covers the Mercury 40hp, 50hp, and 60hp Four Stroke EFI Outboard models manufactured between 2002 and 2005. These engines are designed with Electronic Fuel Injection (EFI) for efficient operation and are water-cooled. Engineered for reliability, these outboards offer dependable performance for various marine applications. This comprehensive Workshop Service Repair Manual provides detailed information for maintaining and repairing your Mercury outboard. It includes step-by-step instructions, pictorial guidance, service scheduling, fluid capacity details, and troubleshooting diagnostics. The manual is designed to assist owners, mechanics, and technicians in ensuring optimal performance and longevity of the engine.