I used to have one in my shop. It worked very well.I cant remember what happened to it,I probably gave it away.It was very useful especially with a lawn mower,a garden tractor,a snowblower,and the kids trail bikes around.It was a lot easier to take the plug out clean it and gap it than it was to run to WalMart for a new one.Now the kids are all growed and gone,and my lawn tractor is a newer one,I probably wouldnt use one.
