5) Remove the dust covers and any retaining clips that
might hold the bearing in. Then using a socket that is
slightly smaller than the size of the bearing tap or press
the bearing out of the swingarm. However, on this 250R
swingarm, the bearing has to be pulled to the outside.
This can only be done with a blind-hole puller. If you don’t
have one, you can tap the bearing out with a long, skinny
6) Clean the bearing surface with light sand paper or
a Scotch-Brite pad. Make sure it’s smooth and nick- or
groove-free and ready for the installation process.
9) After you have cleaned the front bearing mating
surface, heat the outer edge of the swingarm for about a
minute to expand the metal to help the bearing slide in
7) The carrier bearings ride in an aluminum housing
that slips into the rear of the swingarm. It has an eccentric
shape, so it can be rotated for chain adjustment. The
bearings can be replaced individually, or the carrier
can be replaced as a complete unit. When installing the
carrier bearing, apply a light coat of anti-seize lubricant in
the swingarm and around the carrier surface.
8) Sometime during the removal process take your new
bearings and place them in the freezer. They only need
to be in there for an hour or so to make the installation
process a little easier. We are using a swingarm bearing
kit from Pivot Works. Contact them at (515) 402-8000.