Motor ID please? Home › Forum › Ask A Member › Motor ID please? This topic has 4 replies, 3 voices, and was last updated 6 years, 9 months ago by tom-c. Viewing 5 posts - 1 through 5 (of 5 total) tom-cReplies: 94Topics: 34 June 25, 2017 at 7:39 pm #7431 4 HP but I don’t know the year. Attachments: phil-bReplies: 463Topics: 28 June 25, 2017 at 8:25 pm #60316 Google says: http://www.marineengine.com/parts/johns … l=J4BRHCOB 1985 Johnson 4hp tom-cReplies: 94Topics: 34 June 25, 2017 at 8:28 pm #60318 Thank you! chris-pReplies: 2456Topics: 153 June 25, 2017 at 9:25 pm #60323 Tom, Use the word INTRODUCES to determine the year. Where I=1, N=2, T=3, R=4, O=5, D=6, U=7, C=8, E=9, S=0 Use the second last two digits in the model number, so in your case "CO"= "85", or 1985. Hope this helps. tom-cReplies: 94Topics: 34 June 27, 2017 at 11:54 pm #60495 Cool! That’s a new one to me! Thanks. Viewing 5 posts - 1 through 5 (of 5 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In