Mercury 15hp skips a beat

cobra 3.0

Lieutenant Commander
Joined
Jul 31, 2003
Messages
1,797
Just purchased a used 15 Mercury 1993 2 stroke (with 12 volt charging feature) and had a chance to put in the water but only on shore (the lake is still frozen over!). I noticed at slower speeds, especially idle, it sounds like it skips a bit and then dies. At higher speeds the skip is barely noticeable and will not die.

I brought it home and checked the spark plug wires. One of them had a cut in it but not down to the core. I changed the wires and hope this was the problem.

I really need a manual to do some troouble shooting, but in the meantime what else can I check? This motor has been run extensively. What are the common electrical wear areas?
 

cobra 3.0

Lieutenant Commander
Joined
Jul 31, 2003
Messages
1,797
Re: Mercury 15hp skips a beat

Well for anybody inetested, a new set of plugs and new wires has it running like a charm!
 
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