I have an '01 y426 and for starters, I love this bike. Wouldn't trade it for anything. Last year I was riding and then all of a sudden it stalled. When I tried to kick it over, the kick start was seized. So I looked at the manual and looked at every possible precaution. Wasn't the kick start gear or a seized piston. When I asked a mechanic, he said if the crankshaft does not move then its the bearings. Would the bearings cause it to stall? Also, how hard are bearings to replace? The entire bike is apart, but do not have a case splitting tool to finish the job.