The serial number tag is found around the SWIVEL BRACKET (port or starboard); or, check the INSTRUCTION PLATE, Found between the thumb screws above the steering tube. The good thing is, PartsVu includes a prosperity of resources that can assist you find the Mercury outboard parts you need to keep https://yamaha-outboard-motors-ya96172.develop-blog.com/43819051/not-known-facts-about-yamaha-outboard-motor-steering-cable