After it cooled down, it seems to be functioning normally again.
Yep, I would pull all of those apart and check them thoroughly.Strange, does the rearset include a return spring for the brake pedal? If it gt that hot I would disassemble the system from the bike and check it thoroughly, specifically see if the piston seal is damaged from heat. Your rear pads are likely toast, you will need new ones. Check the disk for warpage, could you have been riding the pedal? Most likely the rear sets somehow didn't allow the pedal to return fully. Did you lube the pivot point and check for free movement? Good luck with this.
You bet it does. Brakes don't just seize for no reason. I assume by "pump" you are meaning the master Cylender? I highly recomend you replace all the brake fluid and thourghly bleed the system before test riding. Be careful.The rearset does have a return spring, and I was not riding the pedal. The pump was stuck under heat, but now after it cooled down the pump is working again. I will go try to do a 25 minute round trip on it and see if it still needs fixing.
Upon further investigation, while driving with my girlfriend on the back and she had a ps3 in between us. My long legs and big shoe might have been in the position to have lightly been on the rear brake. As this second ride seems to not lock up the brakes again. So I guess here's anotherHow are you in Texas and riding an MSX?
I power wash it every week.