I did the wifes timing belt saterday and I finished it up sunday morning. the battery was dead cause its on the way out and we were also holding the brakes down for too long, so I rolled it backwards out into the street, jumped with the GSR. No go... it barely idles for a couple seconds and then nothing after that. so i push it back in the garage, take off the the timing belt covers, sure enough the bottom sproket had jumped at three teeth. not sure how this happened cause i was pretty careful and I know it was lined up right when I put it in. Anyway, I fix that and get everything back together by like 2am. Try and start it and nothing. I'm pretty sure it is a bent valve (or 16) because when it turns over it is really smooth, like the spark plugs are out. So now Im scouring the forums looking for another head. damnit.