I went to fire up my KLX 300 today. I pushed down on the kickstarter, I got to the point that I usually kick at (past two hardspots, return kicker to top) and I kicked it. The kickstarter went down then stopped. It returned to the top of it's stroke and WILL NOT MOVE:( What is wrong, I don't think it is the idler gear, I have one from stroker, and I took out the spark plug thinking the automatic decompression was stuck and the kickstarter still wouldn't budge. PLease help me!!