I had just started riding home from my friends place the other night and I just turned down a hill when my 'motarded 02 WR426 died. I thought this isn't unusual as my bike doesn't like running when it's cold, so just pulled in the clutch, put it in 3rd or 4th gear and let the clutch out. It fired once then the back wheel locked up. I tried again but the engine didn't even turn over. I coasted to the side of the road and tried kicking it but the kickstarter wouldn't move . At this point I was getting rather nervous and thought I'd dropped a valve or something. I tried kicking it again and this time it moved, but had no compression, another common occurrence with this bike when it's cold and I've pumped to much fuel into the cylinder. Gave it a good kick, compression returned, next kick it was running normally and I road home no problem. It has been running fine since with no abnormal noises or the like but I'm just curious as to what you guys think might have happened. My bike does had an auto-decomp cam, although it was in it when I got it so I don't know if it's a WR or YZ one. Could it have been just compression lock or something simple like that? I remember being unnecessarily freaked out the first time it lost compression, only to find it was just another quirk with these bikes. Thanks for any input .