2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 293Get this manual

2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 293

7Place the head gasket into position on the cylinderPlace the alignment pins into position; then place the head assembly
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 Recessed Side 732-307B 8Install the four cylinder head cap screws with copper
washers (note the locations of the different -lengthed cap screws)Tighten only until snug NOTE: At this point, oil the camshaft