2005 Kawasaki STx-12F Jet Ski Factory Service Manual., Page 229Get this manual
8-20 ENGINE BOTTOM END C and Co s
CA UTION
To minimize vibration, the connecting rods should have the same eight markB [A[BWeight Mark, Alphabet [C] Diameter Mark [D] If the onnecting rods, ig end bearing nserts, rankshaft are replaced with new ones, select the bearing insert and check clearance with plastigage before assembling engine to be sure the correct bearing inserts are installed
CA UTION
The connecting od bolts are designed to stretch when tightenedNever reuse themSee the table below for correct bolt and nut usageppl rea and oo AAppylygmolsye denuoil doistuhleidfellgrwansgep[Ar]t.ionsb Do not apply rease and oil [B]Apply molybdenum disulfide oil solution [C]