CR125 rear brake

[honda_power]

trying to get the rear break working, have blead it both ways, have even replaced the whole master cylinder with one off a crf250 to see it works. the pedal feels limp like there no fluid in it all, moves with no resistance. theres no air in it.

the brake piston is half out, and wont push in. iv put half a bottle of fluid in the thing and im fucking sick of it. any ideas?

[barty5]

the piston is either stuck in place or come out to far and not lined up try removing it from bike remove pads and a big pair of Polly grips see if it goes back in