2009 Arctic Cat Prowler XT/XTX ATV Service Manual, Page 44Get this manual
15Seat the cam sprocket onto the camshaft making sure the alignment pin in the camshaft aligns with the smallest hole in the sprocket; then place the camshaftsprocket assembly onto the cylinder ensuring the following 17Install the first cap screw (threads coated with red Loctite #271) securing the sprocket and tab-washer to the camshaftTighten only until snug
CD464 CF013A
APiston still at top-dead-centerBCamshaft lobes directed down (toward the piston)CCamshaft alignment marks parallel to the valve cover mating surfaceDRecessed side of the sprocket directed toward the cam lobesECamshaft alignment pin and sprocket alignment hole (smallest) are aligned
18Rotate the crankshaft until the second cap screw securing the sprocket to the camshaft can be installed; then install the cap screw (threads coated with red Loctite #271) and tighten to 11 ft-lbBend the tab to secure the cap screw