The serial number tag is situated on the SWIVEL BRACKET (port or starboard); or, check the INSTRUCTION PLATE, Positioned concerning the thumb screws above the steering tube. This doc contains many of Yamaha's useful trademarks. It may also comprise trademarks belonging to other companies. Any references to other companies or https://outboardmotorsyamaha51503.bloguerosa.com/35807332/5-essential-elements-for-yamaha-250-outboard-lower-unit-oil-capacity