The serial number tag is found within the SWIVEL BRACKET (port or starboard); or, check the INSTRUCTION PLATE, Positioned concerning the thumb screws above the steering tube. By getting into your email address you conform to get marketing messages from Yamaha Outboards. Chances are you'll unsubscribe at any time. At https://yamahaoutboardmotorssouth41738.develop-blog.com/44273872/the-smart-trick-of-yamaha-150-cc-scooty-that-no-one-is-discussing