No rear brake pressure

[wacam]

I just replaced the tire on my 98 FLHT, and compressed the piston (not fully) in the rear caliper to facilitate re-installation. When I did so, I did not open the cap. When I reinstalled everything, I had no rear brake hydraulic pressure. I vacuum bled the system, and still have no pressure at the pedal, I also tried to bleed by pumping up the cylinder to create pressure, but only get a small amount of fluid out of the bleeder. Did I damage the cylinder by reversing pressure? If so, does anyone have suggestions for properly repairing this issue? I am due to have the bike state safety inspected next week, and it will not pass with the rear brake inoperative.
Thanks in advance.

[Rockerbox1]

Diiiiiiiixieeeeeeeeeeeee

[XDixiecratX]

The vacume your gettin will only get worse, cause you cant hear in a vacume. you can repair this by goin to the New to the Community page and introducein yourself, then watch how fast this page fills up

[wacam]

Ended up rebuilding the rear master cylinder with a kit from MoCo-had to buy "cylinder" as a replacement component.