hey everyone, I've been away for a LONG time. riding became more scarce in my area and haven't been in the MX scene for a while. anyways, as you all know you can never get rid of that itch for off road riding, the street just doesn't cut it. long story short, last night I bought/traded for a 2011 yz450f. supposedly the previous owner was riding, shut the bike off, went to kick it and the kickstarter seemed jammed up. I searched the forums and saw alot of post about this and read how alot of people have this happen and can rock the bike in gear to free it up. I did this, and sometimes it free up for almost a full rotation but locks up again. to me this screams valves and timing!!!? so when it's in gear and I rock it I can hear some noise inside the motor but it's hard to put my finger on it. I pulled my stethoscope out and gave it a listen and I seemed to "source the noise" from behind the Kickstart lever. my question is has anyone else had this issue and not have been able to free it up by rocking it and found something moved out of place in the Kickstart mechanism? does the timing jump that often on these bikes? I just picked it up last night and haven't had a chance to go over it yet, and probably won't until this weekened. of course I will be checking the timing, but if the timings spot on is there something I should look for before I pull the head off(can I gain access to the kickstarter gears through the clutch cover?) sorry for the dumb questions, I am a boat mechanic by trade, my memory of working on Mc bikes is just vague. BTW, I did pretty good on the buy/trade, so I'm prepared for the worst, but hoping for the best. thanks again, I just can't wait to get back out on the dirt.