Honda FourTrax Recon TRX250TM 2019 Owner's Manual page 115

11. Install the air cleaner on the air cleaner body.
12. Apply a thin coat of grease to the sealing surface of the air
cleaner assembly.
13. Install the clamp.
14. Insert the air cleaner assembly into the air cleaner housing.
15. Fasten the screws.
Dust Cover
UNDER SEAT
(1)
(1) dust cover
Do not push the dust cover (1) too far into the air cleaner housing
(2).
If the dust cover is dirty, clean it.
Air Cleaner
(2)
(2) air cleaner housing
Servicing Your Honda 105