I can't find out which spark plug is number 1 on my 230 flathead six
A agump61389 · Registered Joined Feb 20, 2013 · 9 Posts Discussion Starter • #1 • Mar 9, 2013 I can't find out which spark plug is number 1 on my 230 flathead six
dana44 · Premium Member Joined Jun 17, 2002 · 20,080 Posts #2 • Mar 9, 2013 The sparkplugs are numbered one thru six front to back, front being closest to the radiator.
