Does anyone know of a step-by-step how-to on a cam chain replacement? I've had a couple mechanics explain it to me by word of mouth, but pictures or at least a detailed description are nice. I have an '00 YZ426, but I'm guessing it's similar on most YZ's/WR's. I'm shimming my valves, and figured it has to be pretty close once I get the cams out, other than pulling the ignition so I can get at the bottom crank. Thanks.