2004-2007 Honda Aquatrax ARX1200N3/T3/T3D Factory Service Manual, Page 360Get this manual
CRANKSHAFTBALANCER (ARX1200T3T3D)PISTON Install new piston pin clips into the grooves in the piston pin hole Make sure the piston pin clips are seated securely Do not align the piston pin clip end gap with the piston cutoutPISTON PIN CLIP
CUTOUT Apply engine oil to the piston and piston ringsBe careful not to damage the piston rings and the cylinder wall with the connecting rod
Install the pistonconnecting rod into the cylinder with the "IN" mark facing toward the intake side, using commercially available piston ring compressor toolInstall the crankshaft (page 12-12)