multis6

Well it's like this. There is a hole and I needed to drill it out with a brisel of a wire brush. Problem solved............

I have brake problems on my XJ 650, the front brakes are tight and get tighter as they heat up when I ride. I have rebuilt the master cylinder, changed the fluids, bleed the lines, and the system works fine at first. With a few pumps of the hand lever the brakes tighten up and do not retract until I loosen the line from the master cylinder to relive the pressure. Rumor has it there is a small back bleed in the master cylinder to relive the pressure from heating in the wheel cylinder. Is this true? How small is it? I have probed around with a single bristle of a metal brush and have not found the opening and do not see it on the inside bore of the MC. What do you think? Thanks