Brakes all replaced but master cylinder still having issues.

[motorcritter]

Adjusting drum brakes can be a dark art, and getting all the air out, after a major rework can be tedious. I've used a hand pump to push fluid up through the system on tricky jobs and motorcycles. I've also rigged up a pressure setup, using my radiator leak tester, to bleed out ABS systems (the pump sections can get full of air bubbles, and without a vehicle-specific scan tool, manipulating the valves can be impossible)- pressurise the system and open it up, each line at a time. Good luck, and hope that helps.
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