This manual covers the Mercury Mariner 200 HP EFI 4-stroke Outboard, manufactured between 2002 and 2007. Engineered for reliable performance, this water-cooled outboard features Electronic Fuel Injection (EFI) for efficient power delivery. Its robust construction and proven design make it a dependable choice for a variety of marine applications, offering the power and responsiveness expected from a high-quality marine propulsion system. This Factory Service Repair Manual provides comprehensive guidance for the maintenance, repair, and troubleshooting of your Mercury Mariner 200 HP EFI 4-stroke Outboard. It details essential procedures, technical specifications, and safety precautions necessary for proper upkeep. Owners, technicians, and mechanics will find detailed information on engine servicing, electrical systems, fuel delivery, and drivetrain components, ensuring optimal performance and longevity of the outboard.