1997-2004 Honda Fourtrax Recon TRX250TE/TM Service Manual, Page 131Get this manual
CYLINDER HEADCYLINDERPISTON Lubr icate the rocker ar shaft outer surfaces with molybdenum oil sol utionCoat the new O-rings with engine oil and install them onto the rocker arm shaft groovesInsert the rocker arm shaft using screwdriver to align the hole between the cylinder head cover and
Install the rocker arm shaft retaini ng bolts with new sealing washers and loosely tighten them