I read a post a while ago, cant find it that said how hard it was to replace the plug on this bike. You have to remove the tank, etc. I think your not using the correct tools for the job. You need a Snap-on swivel plug socket (my craftsman had the wrong swivel angle) and another universal swivel (snap-on or Mac or craftsman). Its possible that a double swivel socket from Mac or Snap-on could work. You cant use a cheap Kmart or Lowes brand socket set, not going to work. I had my plug changed out in 4 minutes. dont forget to check the gap.