2011 Arctic Cat 450/550/650/700/1000 ATV Service Manual, Page 138Get this manual
22Place tab-washer onto the sprocket making sure it covers the pin in the alignment hole GZ190C
ATV-1027
CAUTION
Care must be taken that the tab-washer is installed correctly to cover the alignment hole on the sprocketIf the alignment pin falls out, severe engine damage will result
23Install the first cap screw (threads coated with red Loctite #271) securing the sprocket and tab-washer to the camshaftTighten only until snugGZ190B
21Seat 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