2006 Arctic Cat ATVs 400/400TBX/400TRV/500/500TBX/500TRV/650H1/650 V-Twin Service Manual, Page 300Get this manual

2006 Arctic Cat ATVs 400/400TBX/400TRV/500/500TBX/500TRV/650H1/650 V-Twin Service Manual, Page 300

732-307B 9Loosely install the five cylinder head nuts NOTE: At this point, oil the camshaft bearings, cam lobes, and the
cylinder-tocrankcase nuts (from step 4) securely11With the timing inspection plug removed and the chain held tight, rotate
the crankshaft until the piston is at top-dead-center12With the alignment pin installed in the camshaft, loosely place the
cam sprocket (with the recessed side facing the cam shaft lobes) onto the camshaftAt this point, do not "seat" the sprocket
onto the shaft NOTE: Note the position of the alignment marks on the end of the camshaftThey must be parallel with the valve