be careful if you have the cap off when you compress the caliper, that fluid is going to go somewhere !!! you should be able to blled some out or open the calipers up BEFORE you open the reservoir...but def comress those pistons, sometimes they get air behind them and thats the onlyway to get it out, plus shaking the lines, i mean air travels upward because its lighter than the fluid, you'll get it man, just be patient, cycle the caliper by depressing with a screwdriver or clamp and then pump it back out a few times and then with the cap off, pump the crap out of it, hold the lever in and have a buddy crack the bleeder loose, tighten and then release...repeat the pump, open, tighten, release a few times and let us know, i hope that works, fast quads with no brakes suck !!!