I recently purchased a used 2009 SX250F last week, the bike started right up when purchased and ran great. I went to start the bike the other day, it started for about 30 seconds then died out. I had the choke on and gas on. I attempted to start it a few more times that day and again yesterday but the bike won´t even try to turn over, any ideas? I drained the gas out of the carb bowl, oil is new along with air filter, and compression is good.