The serial number tag is situated 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 of the vertical drive needs to be Found to the engine model and serial https://yamaha-outboard-motors-ca10740.livebloggs.com/43411179/5-essential-elements-for-yamaha-250-outboard-lower-unit-oil-capacity