Here's a picture of my spark for my Honda Urban Express. I have an oil pump which I use. I'm guessing I've set the oil pump so that it pumps too much oil in my gas. Also, I stick spark plugs right out of the box in the moped without gapping it. Can someone explain the basic termology of gapping a spark plug? The picture isn't very good but there's a dull black coat cover the metal piece at the top, there's a bunch of crusty stuff on the edges, carbon I'm assuming and there's a lot of caked stuff on the first three threads.