1988 75 hp mercury power loss. only runs at 4200, periodically jumps momentarily to 5200
B baadair Recruit Joined Aug 19, 2007 Messages 2 Aug 19, 2007 #1 1988 75 hp mercury power loss. only runs at 4200, periodically jumps momentarily to 5200
roscoe Supreme Mariner Joined Oct 30, 2002 Messages 21,948 Aug 19, 2007 #2 Re: 1988 75 hp mercury Likely an ignition issue. Broken wire, or bad coil, causing one plug to not fire.
Re: 1988 75 hp mercury Likely an ignition issue. Broken wire, or bad coil, causing one plug to not fire.
ricksrster Commander Joined Jun 19, 2005 Messages 2,022 Aug 19, 2007 #3 Re: 1988 75 hp mercury http://www.homestead.com/dolphinmarineservice/Ign5.html
