1999-2004 Honda TRX400EX FourTrax Service Manual, Page 172Get this manual
FRONT WHEELSUSPENSIONSTEERlNG Release the ball joints of the upper and lower arms off the knuckle, using the special tool according to the following instructions
TOOL Ball joint remover
07MACSLOOZOO
Apply grease to the ball joint remover at the point shownThis will ease installation of the tool and prevent damage to the pressure bolt threadsInsert the jaws carefullymaking sure that you do not damage the ball joint bootAdjust the jaw spacing by turning the pressure boltNOTE:
Apply grease here