2001 Arctic Cat ATVs factory service and repair manual, Page 229Get this manual
INSPECTING OIL PUMP
1Inspect the pump for damage2It is inadvisable to remove the screw securing the pump halvesIf the oil pump is damaged, it must be replacedFig3-855
Servicing Center Crankcase Components
NOTE: Whenever part is worn excessively, cracked, damaged in any way, or out of tolerance, replacement is necessaryNOTE: The technician should reference the appropriate illustration andor photograph for the model being servicedSECONDARY GEARS NOTE: When checking and correcting secondary gear backlash and tooth contact, the universal joint must be secured to the front shaft or false measurements will occurChecking Backlash NOTE: The rear shaft and bevel gear must be removed for this procedureAlso, always start with the original shims on the rear shaft
MEASURING CAM CHAIN LENGTH (400500 cc)