Hey Gang, I am a complete noob when it comes to brakes so please excuse my ignorance. I just finished greasing swingarm and linkage. After I put the rear wheel back on, I was checking the operation of the rear brake. It seems the brake pads do not retract much after I let off the pedal. So I did numerous searches. I believe my issue is the calipers and seals have some dirt/mud clogged up there from last years rides. This photo doesn't show the brake pads dragging, but it's the only photo I have of the rear brake. So I did more searching and reviewed the manual and didn't find the answer so I'll ask you, in order to get to the calipers, do I HAVE to drain the brake fluid? I don't really want to have to replace the fluid and bleed the lines unless I really have to. Any input is greatly appreciated. Cheers.