Hello. I have worked on mowers and pretty much every other type of lawn service equipment for years. Until last week, I had never heard of an "igniter." My neighbor has 3 Snapper push mowers and all have Kawasaki FC150V engines. Her husband passed away and she asked me if I could get any of them running, so of course I said I would. As I was diagnosing no-start issues, I stumbled upon this igniter part and was pretty amazed that I had never heard of it and that none of the 3 engines had one installed. As I looked into these a little further, i noticed that these 3 models weren't supposed to have igniters. So I guess my question is, am I the only one who feels stupid that I had never heard of an igniter?...lol. And why do some of these FC159V's have igniters and some don't? If they both have coils and magneto's, why would one engine also need an igniter? OK, so that was more than one question...lol. Thanks in advance!