Ya this actually happened to me yesterday at little sahara also,(had to be towed by a yfz450 the whole way back) i think this may be the same problem, i was riding my banshee for about 2 hours and then i shut it off. then started it back up and then it died after about 5 seconds. wouldn't start after that. it is still getting a spark because we pulled one to see if it was and its still sparking. it just wont fire up. it will spark and fire maybe once or so because when i kick their is exhaust coming out just wont stay running.