Hello, I'm just doing the valves for the first time on my XR650L and have a quick question. Are there two "T" (TDC) marks on the flywheel? I aligned my flywheel with the "T" mark went to check valve clearance and couldn't even get a 0.0025" in the intake or exhaust. I rotated the flywheel again to "T" and this time I could measure the clearance on all valves no problem. I rotated the flywheel again to "T" and couldn't measure anything because it was too tight. So are there two "T" marks? Is one of them related to the internal compression release I've seen mentioned elsewhere? Thanks.