meirman wrote:

Is it possible to get an 18MM spark plug for a lawn mower?

And does anyone have a brand/number for one?


The original plug was 14MM (a Champion RJ19LM) but it seems the
previous owner drilled out the hole and it is now about 18MM. (I hope
it is exactly 18mm, but I won't be able to tell until I buy a plug.)


Just find a similar mower / engine on the curb on trash day, and
scavenge the head.