The serial number tag is situated about the SWIVEL BRACKET (port or starboard); or, check the INSTRUCTION PLATE, Found amongst the thumb screws above the steering tube. OMC Model Number Location The model and serial numbers from the vertical drive should be located about the engine model and serial number https://yamahaoutboardmotorsforsa76059.frewwebs.com/37383653/the-basic-principles-of-marine-outboards-for-sale