FORUM RULES UPDATED - The forum rules have been updated to continue to provide a friendly and safe environment for our member community. Please take a moment to review the updated rules and our terms of use and privacy policy. Click here for Forum Rules which has links to the 'terms of use' and 'privacy policy'.
I have 1989 boat with Johnson controls with the big red plug trying to connect to 1999 50 hp motor with two 6 pin plugs and one 3 pin plug. I have the wiring diagram for the big red plug but no information on the 6 and 3 pin plugs.