Ok I have a 2009 ski doo summit, i was out riding and it just stalled out and I couldn't get it running again. It turns over and wanted to start a few times. Then we changed plugs, and checked for spark. No spark. We think the ground came off because there was a broken wire in the front of the sled that looked like it could be the ground but we are not sure if it is a ground or not. My sled doesn't have a battery. Does it need ground to have a spark? ...let me know what you guys think, need help???