The serial number tag is located around the SWIVEL BRACKET (port or starboard); or, check the INSTRUCTION PLATE, Found amongst the thumb screws above the steering tube. This doc is made up of many of Yamaha's important trademarks. It may also contain trademarks belonging to other companies. Any references to https://yamaha-outboard-motors-nz27135.digiblogbox.com/61352006/5-essential-elements-for-yamaha-250-outboard-lower-unit-oil-capacity