how does american tire plug flats
1 Remove the tire from the wheel. 2  Inspect the tire inside and outside. 3  The tire may be repaired when the puncture: 4  Is 1/4 inch or smaller. 5  Is located on the tread. 6  Repair the tread with a plug, and repair the lining with a patch. 7  Repairs cannot overlap.8  Never repair a large hole or one that's in the sidewall.ere's how the tire industry's professional group, the Rubber Manufacturer's Association (RMA), says to repair a flat tire: 1  Remove the tire from the wheel. 2  Inspect the tire inside and outside. 3  Is 1/4 inch or smaller. 4  Is located on the tread. 5  Repair the tread with a plug, and repair the lining with a patch. 6  Repairs cannot overlap. 7  Never repair a ...