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'.
well i dont have a omc book but according to the SELOC repair manual your engine is a 1989.my manual doesnt give wireing diagram for gauges but my boat has one under a hatch . check yours