Plugs for Mercury Mark 55

dbuffington

Petty Officer 2nd Class
Joined
Oct 1, 2007
Messages
127
Hi Folks!

I've had some plug fouling issues with my old Mark 55 engine lately. I'm going to cut back a bit on the oil ratio, but I'm also looking for plug recommendations to address the problem.

I'm running NKG B6S plugs now. Any suggestions?

Thanks!
Dave
 
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