I just installed (2 days ago) an XR650R Hot Cams stage 1 camshaft.... Have broken in the camshaft and everything is running well --- But --- am starting to 2nd guess something. When I had the cylinder head cover off --- looking at the valves & cam .... and with the flywheel mark on the T denoting Top Dead Center of the piston on the compression stroke.... The timing markings on the cam sproket were not perfectly in-line with the cylinder head. The EX marking on the sproket was a little higher than the left marking (the timing marks were not perfectly in-line with the cylinder head)..... but, when installing the HOT CAMS, I made sure that both lobes were pointing down.... (both valves to be closed at TDC) and I also made sure that the sproket and chain were immediately zip-tied to the frame as to make sure nothing slipped a tooth. (in other words, if the chain slipped a tooth...it was slipped before I installed the new cam) ------ is it possible I'm off a little bit on my timing? (maybe the bottom sprocket slipped a tooth? I also made sure to align the sproket flange mark to the hot cams alignment dot...) ------ does the engine run like crap if the cam sproket is off by a single tooth or two? ------ is this normal when installing a Hot Cams? The reason I am second guessing this....is because the XR at intersections would not want to idle down to the standard 1200 RPM at times....(it would sometimes like to stay around 2000-2300 rpm even while warmed up) Not sure if this is a valve timing issue, or maybe an intake vaccuum issue.