Honda FOURTRAX 2018 Owner's Manual page 192

Drivetrain Boots
Front Driveshaft Boots (Except TRX420TE1)
Refer to Safety Precautions on page 103.
FRONT
(1)
(1) driveshaft boots
Check the driveshaft boots (1) for cuts, damage or leaking grease. If
necessary, have your dealer replace them.
182 Servicing Your Honda