The way I did it is just put some hose on the nipple and rout it up over the fork guard or just higher then the caliper and into a ice cream container, open up the reservoir, crack open the nipple and pump your brake be sure not to pump all the fluid out, keep it just above the hole, keep putting in new fluid and pumping out the old till you see the new come out, tighten the nut up on the nipple and fill the remainder of the reservoir to the top while having the lever pulled in put the cap back on and then pump away. Your done.
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