1988-1994 Honda TRX300 Fourtrax, 1988, 1990-1994 TRX300FW Fourtrax Service Manual, Page 92Get this manual
CYLINDER HEADIVALVES Install the oil seal,return springvalve lifter and valve lifter bolt
(4) RETURN SPBING
Note that intake rocker arm has an "I" mark on its side as shown
(1INTAKE ROCKER ARM
Carefully identify the exhaust side parts:The rocker arm ha.s the decompression lug as shown- The rocker arm shaft has two holes as shownApply oil to O-rings of arm shaftsApply molybdenum disulfide grea'se to the rocker arm shafts4' "