This comprehensive repair manual is designed for Mercury 40HP, 50HP, and 60HP four-stroke EFI outboard motors manufactured from model year 2002 onwards. It provides detailed information on servicing, troubleshooting, and repairing these engines. The manual includes comprehensive instructions and diagrams covering a wide range of topics, including engine operation, fuel system, ignition system, electrical system, cooling system, lubrication system, and more. Whether you are a seasoned mechanic or a DIY enthusiast, this manual will equip you with the knowledge and tools to confidently maintain and repair your Mercury outboard motor.

The Mercury 40HP, 50HP, and 60HP EFI outboard motors are powerful and reliable workhorses designed for a variety of boating applications. These models feature Mercury's advanced electronic fuel injection (EFI) technology, which delivers consistent performance across varying conditions and altitudes. The EFI system offers several advantages over traditional carburetor systems, including improved fuel efficiency, reduced emissions, and easier starting even in cold weather. The 4-stroke engines are also known for their quiet operation and smooth power delivery, making them ideal for both fishing and recreational boating.

The Mercury 40HP, 50HP, and 60HP EFI outboards are available in various configurations to suit different needs. They can be found with different shaft lengths, steering options, and propeller sizes. These models are also designed for durability and ease of maintenance. They feature a corrosion-resistant design and components like a robust powerhead and a reliable cooling system. The service and repair manual provides comprehensive instructions and diagrams to help owners and technicians understand the engine's operation and perform necessary maintenance tasks. With proper care and maintenance, these Mercury outboard motors are built to last for years of dependable performance.