bleeding front brake 75 sportster

[LT BOOMER]

rebuilt caliper filled it and line and master getting nothing what next help!!
                                                 Thanks

[olpigiron]

                               
                                  When Bleeding The Brake, You Need To,
Pump The Brake Lever (3-4) Times, While Depressed on Last Pump, Open Bleeder Valve On Caliper,
                       Close Bleeder Valve While Brake Lever Is Still Depressed.
                      Take Your Time and Make Sure "All Air" Is Out of System.
        Repeat As Needed, Could Be Two or Three Times, Until You Have Brake Pressure!!!!
                           Remember, U May Need to Add More Brake Fluid!!!!

[baldoldfxr]

Make up an easy bleeder using the one way valve from a car screen washer pipe, & try pushing the caliper piston all the way back with the bleed valve open, then follow olpigirons  method except with the one way valve fitted you dont close the bleed nipple untill all the airs gone.

[Lew]

I use a small pump oiler filled with brake fluid with a length of hose attached.  Open the master cylinder and plug the hose on a bleeder.  Loosen up the bleeder and slowly pump brake fluid back to the master cylinder until most of the air stops coming out.  Tighten up the bleeder and remove the pump.  Then I attach another length of tubing to the bleeder and put the open end in a small jar with a bit of brake fluid covering the end of the tube.  Bleed again in this direction until no more bubbles and foam and you're done.
Many times an empty master cylinder will not prime sufficiently to push fluid.  Filling the master cylinder by back filling will allow it to work so all the air can be pushed out.  When bleeding dual front calipers start with the left and then bleed the right.  Good luck!

Lew