Four wheeler died last fall when my son was riding it, now have opportunity to sell it and I cant get it started. It doesnt have any spark coming out of new plug. Could it be an electronic ignition that sits under the seat? He did have trouble with it off and on when he would come down on the seat a little hard. I am taking it in tomorrow am before shop closes and trade in on something bigger and would like to get it started and running. Thanks so much for the help!!!!