No spark in a 1973 65HP

boater454

Recruit
Joined
Jul 7, 2011
Messages
4
No spark on any cylinder. I'm not sure if I need to replace the power pack or the coil. Is there a way to tell which is bad? I found an old thread that had the similar problem and they replaced the coil and fixed the problem so I'm thinking this in the way to go but don't want to order one unless I'm pretty sure.

Thanks
 

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
Re: No spark in a 1973 65HP

Disconnect the black/yellow wire from the pack. If you have spark, boat wiring harness prob. Still no spark, you'll have to troubleshoot the mtr ign system. Pretty rare to have three bad coils.
 

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
Re: No spark in a 1973 65HP

You got me on this one. Anyway you re-posted. Now I got comments on both of them. Guess I'm getting to dam old for this. LOL.
 

boater454

Recruit
Joined
Jul 7, 2011
Messages
4
Re: No spark in a 1973 65HP

Disconnect the black/yellow wire from the pack. If you have spark, boat wiring harness prob. Still no spark, you'll have to troubleshoot the mtr ign system. Pretty rare to have three bad coils.

Thanks. I'll try what you suggested. You're right probably not going to be 3 bad coils.
 

dmcneill3

Cadet
Joined
Jun 20, 2011
Messages
25
Re: No spark in a 1973 65HP

What does the power pack do I have a similar problem with my 1976 85HP motor. It appears to not have spark
 

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
Re: No spark in a 1973 65HP

Please read the Blue High Lited section at the top of this forum.
 
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