This Service Repair Manual covers the Yamaha OUTBOARD 225G-250B, a V6 four-stroke outboard motor designed for marine propulsion. Engineered for reliability and performance, these motors offer power outputs ranging from 225 HP to 250 HP. This manual is intended for both do-it-yourself enthusiasts and experienced mechanics, providing comprehensive information to ensure optimal operation and longevity of all models, engines, trim, and transmission types. The purpose of this manual is to provide detailed guidance on service, maintenance, and troubleshooting. It includes step-by-step instructions, detailed diagrams, and exploded views for complete disassembly and repair. Following the procedures outlined herein will help owners and technicians keep their Yamaha outboard motors working properly, offering an inexpensive and effective way to maintain these high-quality marine propulsion systems.