1987 Honda Fourtrax TRX 250X Service Manual, Page 25Get this manual
MAINTENANCE
AIR CLEANER
Remove the seatrear fenderRelease the four clips retaining the air cleaner coverRemove the air cleaner cover
loosen the element band and remove the element and holderRemove the element from the holder
Wash the element in non-flammable or high flash point solvent, squeeze out the solvent thoroughlyand allow to drySoak the element in gear oil (SAE #80901 and squeeze out