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Message: <blockquote data-quote="ianstaley" data-source="post: 150288" data-attributes="member: 2989">Lift the calliper by undoing one mounting bolt and lift so it is clear of the disc, using the brake leaver squeeze until it pops out. do the same on the other side to get that one out.  However, once the piston is out you will have to refill and bleed the brakes. If one is stuck I think the wises move is to remove both callipers, use a brake clamp to pinch off the rubber hoses, if you have stainless steel just allow to empty out don't try and pinch them you will destroy the braided hose.My guess is that you will need to refurbish (clean) the piston and cylinder. Go here to my build another one <a href="https://www.classicgoldwings.com/forum/viewtopic.php?f=82&t=6999&start=105" target="_blank">viewtopic.php?f=82&t=6999&start=105</a> and go down to post #108 where you will see a tool I got to release my own stuck pistons. If you carry on down after that post you will see how I cleaned and polished the cylinder, awaiting NEW pistons. Why because I tried to get them out using brute force trauma result one piston totalled. Just get a new seal kit and refit, re bleed with DOT 4 or 5 brake fluid. Hope this helps bro.   :builder:</blockquote>