2007 Yamaha Apex Factory Service Manual, Page 208Get this manual

2007 Yamaha Apex Factory Service Manual, Page 208

CRANKCASE 11Inspect: Crankshaft journal surfaces Crankshaft pin surfaces Bearing surfaces ScratcheswearReplace the crankshaft12Measure:
bearings must be installed in their original positionsS Clean the crankshaft journal bearings, crankshaft journals, and bearing
portions of the crankcaseS Place the upper crankcase upside down on benchS Install the crankshaft journal upper bearings
and the crankshaft into the upper crankcaseNOTE: Align the projections of the crankshaft journal upper bearings with the
notches in the crankcase S Put piece of Plastigauge on each crankshaft journalNOTE: Do not put the Plastigauge over the oil