Suzuki DR350 Rear Brake Master Cylinder Rebuild

[@mt1885]

Doing the SAME on a 91 DR350S order the plastic piece and all seals to.

[@IRONMAN-kb4su]

IF THERE WAS THAT MUCH CRAP IN THE MASTER WHY WOULD YOU NOT CLEAN THE WHOLE SYSTEM , IT MUST HAVE TRAVELED DOWN TO THE REAR BRAKE NO ? GREAT HOW TO !

[@pharettface]

While that is possible DOT4 is extremely corrosive and would clean the lines up just fine so long as fluid can flow. The main issue is the Master Cylinder because it has little ports and seals where junk cannot flow through. The rear brake its self is a large open piston so fluid flows through it with out issues. The initial draining of the brakes sucked a bunch of junk out and flushing after the rebuild more than likely got most of it. So long as the brakes work with out any issue I think its fine. As I said in the video though just replacing all of the lines would have saved me some time and heart ache for sure. Time will tell haha.

[@diversionbob8482]

@@pharettface The crap in the master cylinder is probably the internal surface of the hose from the reservoir to the master cylinder breaking up, new hoses would be a good move.