I don't think they come with power valves these yearsbe careful with the power valve assy, it requires a special prep to make it go back together and will break if not done right.........this is what Ive read. I have an 02 KX100 and read this while making the purchase.
Also is it normal for the crank to feel a little stiff to move? Mine is
Yeah there's no binding and it moves freely but it's just a little stiffWhen you get older your crank doesn't get as stiff.........ehhh wait your talking about your bike, oh well that should move freely with no binding at all.