yeah when i step on the brakes it doesn't sink but i gotta press it all the way down to get any brake pressure. i just changed the master cylinder and it's still doing the same thing. i need help i already busted 4 of my nuckles lolz and got a deep *** cut on my palm while trying to loosen a rusted bleeder screw. M/C was bench bleeded and i bleeded the brakes twice to make sure. can u guys help me out?

 

You most likely still have air in your brake lines. How are you bleeding them?