This comprehensive Mercury Mariner Outboard 115 EFI 4-Stroke Service Repair Manual is your ultimate guide to servicing and repairing your outboard motor. It covers all models starting from 2001 with serial number 0T178500 and newer.

This manual is packed with detailed information and high-quality diagrams to help you understand every aspect of your engine. You'll find comprehensive instructions on:

* **Specifications:** Get all the essential details about your engine.
* **Maintenance:** Learn the proper maintenance procedures to keep your engine running smoothly.
* **General Information:** Gain a deeper understanding of your engine's workings.
* **Outboard Motor Installation:** Get complete instructions for installing your engine.
* **Electrical Systems:** Understand the electrical systems, including ignition, charging, and starting.
* **Electronic Fuel Injection:** Learn about the workings of the EFI system, including diagnostics and troubleshooting.
* **Service Procedures:** Get step-by-step instructions for servicing all components.
* **Emissions:** Understand the engine's emission control system.
* **Powerhead:** Get detailed information about the powerhead, including the cylinder head, cylinder block, and crankcase.
* **Lubrication:** Learn about the engine's lubrication system.
* **Mid-Section:** Understand the mid-section, including the clamp/swivel brackets and drive shaft housing.
* **Power Trim:** Learn how to service and repair the power trim system.
* **Lower Unit:** Get detailed information about the lower unit, including the gear housing.
* **Attachments/Control Linkage:** Learn how to service and repair the attachments and control linkage.
* **Throttle/Shift Linkage:** Understand the workings of the throttle and shift linkage.
* **Color Diagrams:** Use clear, easy-to-follow diagrams to visualize the engine's components.

This manual is designed to be user-friendly, making it easy for anyone, regardless of their experience level, to perform repairs confidently. With its detailed instructions and comprehensive coverage, you can save money by tackling your own engine repairs.

The Mercury Mariner 115 EFI 4-Stroke outboard motor is a reliable and powerful choice for boaters seeking a balance between performance and fuel efficiency. This 115 horsepower engine, part of the Mariner family, is renowned for its smooth operation and durability. Designed with a four-stroke, fuel-injected system, the 115 EFI offers consistent power delivery and outstanding fuel economy, making it an attractive option for both recreational and commercial use. Featuring a lightweight and compact design, the 115 EFI is easily mounted on a wide variety of boats, from small runabouts to larger fishing vessels. The engine is equipped with a digital electronic ignition system, optimizing ignition timing for enhanced performance and reduced emissions. This, combined with its quiet operation, makes the 115 EFI a pleasure to use.

Beyond its performance, the Mercury Mariner 115 EFI 4-Stroke is built for longevity. The engine is constructed with high-quality materials and features corrosion-resistant components, ensuring years of reliable operation. Its robust design withstands the rigors of marine environments, making it a suitable choice for both freshwater and saltwater applications. The 115 EFI is also notable for its ease of maintenance. The engine is designed with user-friendly features, such as easily accessible service points, simplifying routine maintenance tasks. Mercury Mariner offers a comprehensive network of authorized dealers and service centers, providing owners with convenient access to parts, repairs, and technical support. Whether you're embarking on a leisurely cruise or engaging in serious fishing, the Mercury Mariner 115 EFI 4-Stroke outboard motor delivers the power, efficiency, and reliability you need for a rewarding boating experience.