2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 220Get this manual

2003 Arctic Cat ATVs from 250cc to 500cc Service Manual, Page 220

6If clearance is excessive, measure the journals of the camshaft
2If damaged, the camshaft must be replaced NOTE: If the journals are worn, replace the camshaft; then measure the clearance againIf it is still out of tolerance, replace the cylinder head
Inspecting Camshaft SpringDrive Pin