2008 Honda Aquatrax ARX1500T3/T3D factory service manual, Page 304Get this manual
CRANKSHAFTIBALANCERIPISTON BEARING INSTALLATION Before installing the main bearing inserts, remove the oil jets from the upper crankcase and blow out each oil jet with compressed airCoat new O-rings with engine oil and install them into the oil jet groovesInstall the oil jets into the crankcase
Clean the bearing outer surfaces and crankcase bearing supportsInstall the main journal bearing inserts onto the crankcase bearing supports, aligning each tab with each groove