Hey Guys, I wanted to get your opinions on this. I have noticed that all of my 2 cycle equipment seems to take a different NGK spark plug. I have always ordered the plug that was in the machine when I needed a replacement. I do not go through many spark plugs, so I hate to have one of each on hand all the time, like I do with air/fuel filters and such. Upon looking through the Champion Catalog, I noticed they specify the exact same champion spark plug number for all of my equipment, and actually for all of the 2 cycle equipment that I saw in the catalog. I cannot remember the number off hand. Why is it that NJK seems to make a ton of different plugs for this stuff, and champion only makes one. Are you sacrificing anything going to one plug for all? I am a little concerned, because from what I have been told, even though a spark plug fits into the hole, does not mean its the right one, and that if its too hot it can burn your piston. Apparently my dad had this happen back in the day with chainsaws when he was a logger. What do you think of switching? I would like to keep a couple of the same plug in inventory in my shop if its safe for all of my equipment. BTW, I havew a mix of Echo, Tanaka, Kawasaki, and Sthil equipment. well, plus a crappy homelite chainsaw.