I have a 08 YZ450 that is one year old this month and just recently lost compression when trying to start the bike. I last rode the bike on 6/27 and let it sit for about 6 weeks and when i tried to start it there was no resistance when trying to kick start it, it would kick right thru so easy in fact i could push the kick start thru with my hand. I put the bike in gear pulled the clutch in, messed with it a little bit and that seemed to fix it. I've ridden the bike once since then and now its doing it again. Any suggestions on what the trouble could be?