2004 650 Twin Arctic Cat ATV Service Manual, Page 92Get this manual

2004 650 Twin Arctic Cat ATV Service Manual, Page 92

REMOVINGDISASSEMBLING 1Remove the oil pump from the engine (see Left-Side Components in Section 3)2Remove the circlip (A)
installation of the oil filter CLEANING AND INSPECTING NOTE: Whenever part is worn excessively, cracked, or damaged in any
way, replacement is necessary Oil Pressure Relief Valve NOTE: To remove the oil pressure relief valve, the center crankcase
must be separated (see Section 3) 1Clean all oil-pump components2Inspect the rotors for scoring and gouges3Inspect the driveshaft
and driven sprocket for damage4Inspect the pump housing for cracks or damageASSEMBLINGINSTALLING 1Remove the oil pressure
relief valve (A); then check the valve for debris or metal filings 1Place the shaft into the pump housing; then install the
inner and outer rotors and secure with circlip2Install the oil pump into the engine (see Left-Side Components in Section
3) Testing Oil Pump Pressure NOTE: The engine must be warmed up to operating temperature for this test 2Using wooden dowel