I'm forwarding this ? from another fishing board as he is not able to find an answer. I thought the answer could be found here.<br />Thanks<br />Does anyone know how to figure out the year of a johnson motor by the model & serial #'s? It's an older 5 1/2 hp. motor...I'm thinking it's a late 50's - early 60's, model #CD-12, serial #1203471. Any help would be appreciated