Installing my new 10gx this morning that Horizon replaced and I noticed no washer on the sparkplug. I can't remember if there was one there before. The sparkplug was already on the motor, I noticed it when I was wrapping my temp sensor around the plug. I did a search with google image found this image. Anyone know where I can find one those washers easily? I don't have any spare plugs, I guess its time to find some. Also would it be a bad idea to run the motor without that washer?