2004-2007 Honda Aquatrax ARX1200N3/T3/T3D Factory Service Manual, Page 350Get this manual
CRANKSHAFTBALANCER (ARX1200T3T3D)PISTON Lower all the pistons to top dead center to avoid damaging the crankpin by the connecting rod boltsInstall the cam chain over the timing sprocket on the crankshaftAlign the locating pins on the bearings with the grooves in the crankcase
CAM CHAIN CRANKSHAFT
Carefully install the crankshaft onto the upper crankcaseSet the connecting rods onto the crankpins
CONNECTING RODS