The serial number tag is located around the SWIVEL BRACKET (port or starboard); or, check the INSTRUCTION PLATE, located concerning the thumb screws above the steering tube. This doc is made up of many of Yamaha's important trademarks. It might also comprise trademarks belonging to other companies. Any references to https://yamaha-outboard-motors-fo80862.fireblogz.com/68172072/new-step-by-step-map-for-yamaha-30-hp-jet-outboard