The serial number tag is located over the SWIVEL BRACKET (port or starboard); or, check the INSTRUCTION PLATE, located amongst the thumb screws above the steering tube. OMC Model Number Location The model and serial numbers from the vertical drive must be Positioned to the engine model and serial number https://yamaha-outboard-motors-go63950.aioblogs.com/89646992/fascination-about-yamaha-115hp-2-stroke-outboard