1986 Mercury inline 6 no spark #3 cylinder

F

frb

Cadet
Joined
May 31, 2009
Messages
6
I have a 1986 115hp Mercury. #3 cylinder has no spark. All 6 cylinders have 125lbs compression and other five have great spark. Any thoughts would be appreciated.
 
daveswaves

daveswaves

Ensign
Joined
Mar 22, 2002
Messages
901
Re: 1986 Mercury inline 6 no spark #3 cylinder

The most obvious thing would be one dead coil or a broken wire to that coil or a bad ground at that coil.
 
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