I just bought this bike,it is as new with very little use and bone stock.10 min into my first ride I stalled it in a turn,I don't know how hard they are to start hot,but after 3-4 min it started but ran like crap and stalled out 30 seconds later.I let it cool(cause it wouldn't start) and it started and ran perfect for about 2 min,then started breaking up real bad and quit for good. This is my first 4 stroke dirt bike and I'm not off to a very good start. Any ideas guy's before I dig into this thing??? I just read about the woodruff key problem,but don't know if it has been updated or not.What are the odds this wood happen to me in 10 min. when he had no problems in 2 years. Thanks for any advice.