The serial number tag is located over the SWIVEL BRACKET (port or starboard); or, check the INSTRUCTION PLATE, Found between the thumb screws above the steering tube. This doc has many of Yamaha's valuable trademarks. It might also have trademarks belonging to other companies. Any references to other companies or https://yamahaoutboardmotorsyamah42407.blogunok.com/37030550/the-basic-principles-of-marine-outboards-for-sale