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 a 95 115 merc, what could cause it to have a slight spark knock,(pretty sure its a spark knock) when i decelerate from about 5000rpm to 4000rpm roughly.....???
oh an i check all the plugs and wires all hooked up well, and the plugs are fairly new, and when it happends there does not seem to be any lose in performance....
