2004-2007 Honda Aquatrax ARX1200N3/T3/T3D Factory Service Manual, Page 144Get this manual
LUBRICATION SYSTEM Inspect the piston for wear, unsmooth movement or damageInspect the spring for fatigue or damageAssemble the relief valve in the reverse order of disassembly
Apply oil to new O-ring and install it onto the relief valveInstall the relief valve into the oil pump coverO-RING
FRONT CRANKCASE COVER REMOVAL