This comprehensive service and repair manual covers Mercury 115 EFI 4-stroke outboard motors, specifically those manufactured starting in the 2001 model year and beyond, with serial numbers OT178500 and above. It provides detailed instructions and diagrams to guide you through a wide range of maintenance and repair tasks, covering everything from routine servicing to complex troubleshooting procedures. The manual includes in-depth information on engine operation, electrical systems, fuel systems, cooling systems, and more. You'll find detailed exploded views, wiring diagrams, and troubleshooting charts to help you diagnose and resolve issues efficiently. Whether you're a professional mechanic or a knowledgeable DIY enthusiast, this manual is an invaluable resource for keeping your Mercury 115 EFI 4-stroke outboard running smoothly and reliably.

The Mercury 115 EFI 4-Stroke outboard motor is a powerful and reliable option for boaters seeking a mid-range engine that delivers exceptional performance and fuel efficiency. This engine boasts a 1.8-liter, four-cylinder, four-stroke design, equipped with electronic fuel injection (EFI) for precise fuel delivery and optimal combustion. With its advanced technology, the 115 EFI offers smooth acceleration, quiet operation, and exceptional fuel economy, allowing you to enjoy extended outings while minimizing fuel consumption. The engine's lightweight design and integrated powerhead contribute to its streamlined profile and enhanced maneuverability, making it ideal for a range of boat types, from aluminum fishing boats to small fiberglass cruisers.

Further enhancing its user-friendliness, the Mercury 115 EFI 4-Stroke features a user-friendly digital control system, providing real-time information on engine parameters like RPM, fuel consumption, and warnings. The integrated tilt and trim system allows for easy adjustment of the engine angle, optimizing performance based on water conditions and load. The engine's robust construction and high-quality components ensure lasting durability, while its low-emission design meets stringent environmental standards. Whether you're an experienced boater or a newcomer to the waters, the Mercury 115 EFI 4-Stroke is a reliable and efficient engine that offers a satisfying blend of power, fuel economy, and user-friendly operation, making it a popular choice for a wide range of boating applications.