1986-1989 Honda TRX250 FourTrax 250R Service Manual, Page 23Get this manual
MAINTENANCE Loosen the air cleane element connecting band and remove the elementRemove the element from the base
Wash the element in non-flammable or high flash point solvent, squeeze out the solvent thoroughly, and allow to dryCAUTION
The element is made of several different materials bonded together; to prevent damaging the element, handle it gently'86, '87: Soak the element in gear oil (SAE #80 or 90) and squeeze out excess
WASH IN SQUEEZE OUT GEAR OIL SQUEEZE SOLVENT SOLVENT (SAE #80 OR 90) OUT THOROUGHLY EXCESS OIL
After '87: Fill the measuring cap provided in the back of the air cleaner cover with Honda 4-Stroke oil or equivalentPour the measured oil on the air cleaner elementThen rub the 'air cleaner element until it is saturated with the oilInstall to the Install Install Install the element on the base and apply light coat of grease sealing edge of the elementthe element into the case with the tab facing upthe air cleaner case coverthe seatrear fender