1985-1986 Honda Fourtrax 125 TRX125 Shop Manual, Page 26Get this manual
MAINTENANCE
AIR CLEANER
Remove the seatRemove the four wing bolts and the air cleaner case cover
AlA CLEANER CASE COVER
loosen the element holder band, Remove the wing bolt and the element assembly from the air cleaner caseRemove the air cleaner element from the holder
Wash the element in non-flammable or high flash
point solvent, squeeze out the solvent thoroughlyand allow to dry