Home › Forum › Ask A Member › 1976 Johnson 35HP magneto problem › Re: 1976 Johnson 35HP magneto problem
September 18, 2016 at 12:40 am
#44196
Anything remotely conductive on the spark plug insulator can cause this and, as has been said before, once it arcs, the carbon path is there. A greasy fingerprint can do it. Always install spark plugs with clean, dry hands!
Dave