KYMCO says about 1876 of the following models built from 2009-2012 have been affected: UXV 500/500i, UXV 500/500iLE and UXV500/500iSE.KYMCO says the nature and extent of the possible defect, or the risk is due to an exposed portion of the exhaust system that could allow debris such as leaves or brush or other flammable materials to catch fire and burn.