Master Cylinder Bleed Question --

[mneblett]

I have a 2012 R12RT. Last evening I attempted to bleed the front brake at the tiny bleeder at the end of the master cylinder. I turned the bleeder about 1/3 turn (~ 120 degrees), but nothing came out. The brake lever was being squeezed to create line pressure during the bleeding. There was never any change in feel at the lever (such as a drop in pressure and movement toward the grip, as happens when a caliper bleeder is opened).

 

I was somewhat surprised, as every bleeder I've operated has started passing fluid almost immediately upon being cracked open. I did not want to rotate the bleeder out any father until I checked in here.

 

Should brake fluid have started to flow immediately upon cracking the bleeder open, or does this tiny bleeder need to be rotated farther out before it flows?

[mneblett]

Answered my question this evening -- when I turned the tiny bleeder more than one full turn I started to get flow out of the bleeder. First time I'm ever had to rotate a bleeder that far to get fluid out.