The serial number tag is found over the SWIVEL BRACKET (port or starboard); or, check the INSTRUCTION PLATE, Positioned amongst the thumb screws above the steering tube. By moving into your email deal with you comply with obtain marketing messages from Yamaha Outboards. Chances are you'll unsubscribe at any time. https://yamaha-outboard-motors-au14554.madmouseblog.com/17455025/the-5-second-trick-for-outboard-motor-mercury-yamaha