2007 Arctic Cat Four-Stroke Factory Service Manual, Page 82Get this manual
! NOTE: Make sure the tabs and the oil holes in the bearings are still aligned with the notches and oil passages in the upper and lower crankcase halves 7Install the half bearings; then lubricate the lower crankcase half bearing faces liberally with engine oil taking care not to get oil on the crankcase bearing journals
4Remove the lower crankcase-to-upper crankcase mounting cap screws; then carefully separate the crankcase halves5Using the scale supplied with the plastigauge, verify that the oil clearance for each is 0.0200.040 mm (0.00079-0.00157 in with maximum limit of 0.065 mm (0.00256 inRemove the plastigauge; then clean the bearings and crankshaft journals
! NOTE: Take care not to get sealant on the bearing surfacesSealant should be at least mm (0.12 in from the bearing surfaces