The valves, do they what did you say ceez what is that,stuck open what are you talking about idiot,and tappets are lifters not valves dummy,are you talking about the valves shims or do you even know, you want to race the bike,first learn how to ride, And how did you afford a 02 crf you sound like a dumbass hick,stop drinking your bath water,its doing something to your brian. your problem is you messed with the bike and canĀ“t fix it.