My father went out and bought a can of "Berryman B-9 Chem-Dip, carburetor and parts cleaner" yesterday to clean out an old Xr100's carburetor. I wanted to see if this stuff was any good so i tossed a couple of old, fouled plugs in it. I let them sit for about an hour pulled them out, they looked so good after wiping them off and spraying with starting fluid i desided to try one in my bike. It started first kick and i rode it for about two hours with no trouble. The other one that i had put worked two! The first one i had tryed was a br9eg out of my friends cr125. I don't think it will damage regular non resistor plugs but i am kind of worried about it messing up these resistor plugs. If this stuff keeps working it would be practical for a moto family to buy, all two-strokes foul plugs occasionally and it would save money in the long run. Plus you can clean about any thing with it so it might be a good idea to pick up some. Does anybody know if it will damage the plugs? please tell me so i will stop using it to. Sorry if i put this in the wrong forum, none seemed right.