The serial number tag is located on the SWIVEL BRACKET (port or starboard); or, check the INSTRUCTION PLATE, Found in between the thumb screws above the steering tube. This doc contains many of Yamaha's precious trademarks. It might also have trademarks belonging to other companies. Any references to other companies https://yamahaoutboardmotorsnz79515.snack-blog.com/36526738/5-easy-facts-about-yamaha-60-hp-cowling-described