W waintain New Member Jun 27, 2009 7 0 0 63 Maine Mar 1, 2011 #1 Just a question,what is the mm size for the spark plug hole for a 80 cc raw motor.Plan to get a compression tester.thanks.
Just a question,what is the mm size for the spark plug hole for a 80 cc raw motor.Plan to get a compression tester.thanks.
2door Moderator Staff member Sep 15, 2008 16,302 175 63 Littleton, Colorado Mar 5, 2011 #3 14mm X 1 thread size. Pretty standard for all small engines. Tom
