Home › Forum › Ask A Member › 64 McCulloch 7.5hp low profile spark plugs › Re: 64 McCulloch 7.5hp low profile spark plugs
July 27, 2016 at 9:06 pm
#41066
Spark plug H10J (or H10C, nowadays, at .035. Points at .020. Hope you don’t need to replace the impeller, it’s an exercise.