Pandorasglocks
XS650 Enthusiast
Bike: 79 XS650, single front disk brake. All stock.
So today I finally decided to stop putting it off and flush my front brakes (owned the bike for 3 years now). No surprise the fluid looks like red deck stain. Once I got most of the old fluid out of the bleed screw I added some fresh DOT3 with the intention of flushing it all out as well. BUT the new fluid would not pass through the master cylinder. So I proceeded to pull and clean all of the banjo bolts and hoses with brake parts cleaner. More red liquid but everything was moving through fine. I then had the master cylinder with no lines attached to it, pumped the brakes a bunch of times and nothing. So I removed the assembly from the handle bars and dumped out the reservoir, a bunch of sand and dirt came out I then sprayed the shit out of it with brake parts cleaner, even stuck the tube into the bottom of the reservoir and nothing would come out the other side, regardless of the lever being pulled or not. Filled the res again and still nothing.
I've rebuilt the rear caliper and flushed it's lines before but I've never touched either master cylinder. Is it worth trying to rebuild something like this or should I just replace the whole assembly?
Thanks!
So today I finally decided to stop putting it off and flush my front brakes (owned the bike for 3 years now). No surprise the fluid looks like red deck stain. Once I got most of the old fluid out of the bleed screw I added some fresh DOT3 with the intention of flushing it all out as well. BUT the new fluid would not pass through the master cylinder. So I proceeded to pull and clean all of the banjo bolts and hoses with brake parts cleaner. More red liquid but everything was moving through fine. I then had the master cylinder with no lines attached to it, pumped the brakes a bunch of times and nothing. So I removed the assembly from the handle bars and dumped out the reservoir, a bunch of sand and dirt came out I then sprayed the shit out of it with brake parts cleaner, even stuck the tube into the bottom of the reservoir and nothing would come out the other side, regardless of the lever being pulled or not. Filled the res again and still nothing.
I've rebuilt the rear caliper and flushed it's lines before but I've never touched either master cylinder. Is it worth trying to rebuild something like this or should I just replace the whole assembly?
Thanks!