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Discussion Starter · #1 ·
1975 Honda CB 550 K

I ordered a rebuild kit for the front brake. After replacing it, it worked good for the first squeeze then and I when started bleeding it, it started leaking again.

I dissembled it again and the rubber cap located after spring tore just like the original did and I'm not sure why. I tried to find a burr somewhere in the master cylinder but everything looks/feels fine. I'm guessing there's one between the a drain hole in the master cylinder and the line so that when the your squeezing the brake and activating the spring and rubber cap/plug it getting ripped.

Your thoughts are appreciated.

I about to start searching for a replacement.
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