1985-1987 Honda TRX 250 Fourtrax 250 Service Manual, Page 167Get this manual
BRAKES Remove the drum cover mounting boltsRemove the skid plate, stone guard and brake drum coverLoosen the rear brake cable adjusting nuts and remove the brake drum
(2) ADJUSTING NUTS
BRAKE DRUMC OVER INSPECTION
Check the brake drum cover dust seal for damageReplace, if necessaryRemove the dust seal from the brake drum coverInstall the dust seal into the brake drum cover using the attachment and driver