ATC 200x Break Help!

[LoveMyTrikes]

Hey everyone I recently put new brake pads in my 200x and blead the rear brakes. The master cylinder then stopped working and started leaking. I disasembled, cleaned, and re placed the master cylinder back on the bike. Then all was well for about 3 days. It has now happened again. Any suggestions on what to do?

[Angore]

Did you put in the recommended fluid type ? (DOT 3/4/5)
Certain fluids will " react " with each other and the components of the hydraulic system.
I know this from experience as after putting the wrong fluid in my 79 Sportster's rear system , in 4 days it had dissolved the seals in the M/C and caliper.
Not sure what the correct fluid it is for your application , but I'm sure someone will chime in .
Also be sure to use NEW fluid from an unopened container , Brake fluid is hygroscopic which means it has an affinity for moisture .