The serial number tag is found around the SWIVEL BRACKET (port or starboard); or, check the INSTRUCTION PLATE, located in between the thumb screws above the steering tube. This document has many of Yamaha's precious trademarks. It can also comprise trademarks belonging to other companies. Any references to other companies https://trentonhgebb.vidublog.com/35834900/the-smart-trick-of-yamaha-150-gph-that-nobody-is-discussing