1999-2004 Honda TRX400EX FourTrax Service Manual, Page 107Get this manual
CYLINDER HEADVALVE Install the rocker arms in the cylinder head cover as shown-
Install the rocker arm shafts with new sealing washersApply locking agent to thethreads of the rocker arm shafts and tighten the shafts
TORQUE: 27 12.8 kgfm20 Ibf4t)
Install the sub-rocker arms and wave washers in the cylinder head cover as shown, noting each identification mark as shown