WARNING: This page is about a different car, the 2003 Mazda Protege5, 2003 Mazda Protege, 2002 Mazda Protege5, and 2002 Mazda Protege. However, it is still accessible from the selected car via links, so may be relevant.
Without removing the pilot bearing from the flywheel, turn the bearing while applying force in the axial direction.
If the bearing sticks or has excessive resistance, replace it.