The serial number tag is found to the SWIVEL BRACKET (port or starboard); or, check the INSTRUCTION PLATE, Situated between the thumb screws above the steering tube. This document incorporates many of Yamaha's valuable trademarks. It might also consist of trademarks belonging to other companies. Any references to other companies https://outboard-motors-yamaha39382.bloggazzo.com/35805268/fascination-about-yamaha-115hp-2-stroke-outboard