Odd Brake Problem

[Daven75]

81 Gs850g

Front brakes stick/won't release pressure. It's very difficult to even push the bike due to how much pressure is being applied to the front rotor.

When I pulled the calipers off one would compress normally but the other would not and I had to crack the bleeder for it to be compressed. What would this indicate? Bad brake line to that caliper?

[cowboyup3371]

Sounds like the master cylinder and calipers need a cleaning and maybe refresh as there’s a small return port that can get plugged. When was the last time you changed the fluid?

[Daven75]

Sounds like the master cylinder and calipers need a cleaning and maybe refresh as there’s a small return port that can get plugged. When was the last time you changed the fluid?

Small update. The return port is clogged. Sadly, without rebuilding it I couldn't fix it. Soooo I'm trying a spare 07 gsxr 750 brake master cylinder before I go about rebuilding the oem one.