I just changed my GL 1100 plugs the plugs I put in witch the book calls for are NGK DR8ES-L gap @ .028 . The plugs that I took out are NGK D8EA which are not listed in the book what is the difference in this plug ? The one I put in is the one it say is the standard plug. There is one for cold and one for constant high speed . Neither of these match the plug I took out. Your comments please. Dusty