The serial number tag is located to the SWIVEL BRACKET (port or starboard); or, check the INSTRUCTION PLATE, located in between the thumb screws above the steering tube. By entering your email tackle you conform to obtain marketing messages from Yamaha Outboards. You could possibly unsubscribe at any time. At https://yamahaoutboardmotorsdeale17272.uzblog.net/about-marine-boat-name-stickers-50521122