2006 Arctic Cat ATVs 400/400TBX/400TRV/500/500TBX/500TRV/650H1/650 V-Twin Service Manual, Page 59Get this manual

2006 Arctic Cat ATVs 400/400TBX/400TRV/500/500TBX/500TRV/650H1/650 V-Twin Service Manual, Page 59

5Bend the washer tabs and remove the two cap screw securing the sprocket to the camshaft 7Note the timing marks for installing
from falling into the crankcase 8Remove the cam chain tensioner by lifting it from the chain cavity; then remove the two
lower nuts securing the cylinder head to the cylinder, one in front and one in rear 6Using an awl, rotate the C-ring in its
groove until it is out of the cylinder head; then remove the C-ringNOTE: Care should be taken not to drop the C-ring down