The serial number tag is situated around the SWIVEL BRACKET (port or starboard); or, check the INSTRUCTION PLATE, Situated involving the thumb screws above the steering tube. This document consists of many of Yamaha's valuable trademarks. It can also have trademarks belonging to other companies. Any references to other companies https://ebayoutboardmotorsyamaha19628.blog-kids.com/37202957/the-5-second-trick-for-outboard-motor-mercury-yamaha