1986-1989 Honda TRX250 FourTrax 250R Service Manual, Page 128Get this manual
FRONT WHEElSUSPENSIONSTEERING With the breaker arm in the horizontal position, place the breaker press head assembly over th breaker arm press blockMake sure the press head bolt it backed out all the way and then position the nylon buttons on the press head against the inside edge of the rimInsert the threaded shaft through the appropriate hole in the breaker press head assembly and then tighten the lever nut until both ends of the breaker press head assembly are in firm contact with the rimNOTE Insert bolts through the holes inthe rim hub mounting tabs and the adapter to position the adapter properly(1) PRESS HEAD BOLT'(3) PRESS HEAD ASSEMBLY
Tighten the press head bolt until the reference mark on the press block is aligned with the top edge of the press headIf th rest of th bead cann ot be push ed dow into th center of the rim by hand, loosen the press head bolt and the lever nutRotate the breaker arm assembly and breaker press head assembly 18to 14thecircumference of the rimTighten the lever nut and then tighten the press head bolt as describedRepeat th is procedure as necessary until th remainder of th bead can be pushed down into the center of the rimAssemble the Universal Bead Breaker on the other side of the wheel and break the bead following the same proceduresRemove the tire from the rim using tire changer machine or tire irons and rim protectors