1985-1986 Honda Fourtrax 125 TRX125 Shop Manual, Page 20Get this manual
LUBRI CATION
OIL FILTER ROTOR AND SCREEN
Clean the oil filter rotor before adding oilRemove the right crankcase (page B-3) and lutch outer covers (page 8-4)
RIGHT CRANKCASE COVEA
Clean the clutch outer cover and the inside of the
clutch outer using clean, lint-free cloth