The serial number tag is located to the SWIVEL BRACKET (port or starboard); or, check the INSTRUCTION PLATE, located concerning the thumb screws above the steering tube. This doc has many of Yamaha's precious trademarks. It might also contain trademarks belonging to other companies. Any references to other companies or https://outboardmotorsyamaha63727.theideasblog.com/37450270/5-essential-elements-for-yamaha-outboards-for-sale-usa