This manual covers the Yamaha F115C and LF115C outboard motors, designed for reliable marine propulsion. These 4-stroke, 115 horsepower engines feature Electronic Fuel Injection (EFI) for efficient operation and an in-line 4-cylinder configuration with a Single Overhead Camshaft (SOHC) valve train. Engineered by Yamaha Motor Corporation, these outboard motors are built to deliver consistent performance and durability for a wide range of boating applications.

The purpose of this English-language Service Repair Manual is to provide comprehensive guidance for the maintenance and repair of your Yamaha outboard motor. It details essential procedures, including lubrication specifications, troubleshooting steps, and technical data. By following the instructions within this manual, owners and technicians can ensure optimal performance, longevity, and safe operation of the F115C and LF115C models.