This manual covers the Yamaha 115HP Outboard, produced between 1996 and 2008. This robust marine engine, available in both 2-stroke and 4-stroke configurations with 4 cylinders and a power output of 115 HP, is engineered for reliability and performance in a variety of watercraft. Its advanced fuel system, utilizing either carburetor or fuel injection, ensures efficient operation. The outboard drive system features a standard Forward, Neutral, Reverse gear shift, providing versatile control for recreational and professional marine applications. This comprehensive Service Repair Manual, also known as a Shop Manual or Workshop Manual, is written in English and provides detailed guidance for maintaining and repairing your Yamaha 115HP Outboard. It covers essential areas including general information, specifications, periodic inspections and adjustments, fuel system, power unit, lower unit, bracket unit, electrical system, and troubleshooting common issues such as starting difficulties, rough idle, and overheating. This manual is an indispensable resource for owners, mechanics, and technicians to ensure the longevity and optimal performance of the engine.