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Front Brakes Building up Pressure XS400

Posted: Mon Mar 13, 2006 7:13 pm
by plchamb
Got a yamaha XS400 1982...
Front brakes works fine...just filled up the master cylinder with new brake fluid. Doesnt look like there is any leak but it builds up pressure and sometimes the brake gets tighter and grabs the disk way to hard... Doesn't lock completely but shouldn't grab that hard.
Any suggestion where it could be coming from.
I bled it yesterday to release the pressure but today again... it is a little too tight!
Thanks for your help!

Posted: Thu Apr 27, 2006 7:20 am
by CORSCO
SOUNDS LIKE RETURN ORIFICE IN THE MASTER CYL. IS CLOGGED. CLEAN IT WITH A VERY SMALL WIRE.