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LOSS OF REAR BRAKES

1988 FX CUSTOM.,LOSS OF MY REAR BRAKES,PADS ARE DECENT,FLUID FULL,I TRIED TO BLEED BUT ONLY AIR AND TINY FLUID, I DRAINED THE SYSTEM AND REFILLED WITH DOT 3, I HAVE #1LINE FROM RESERVOIR TO MASTER PEDAL #2 LINE FROM MASTER PEDAL TO A ROUND VALVE WITH WIRES (ELECT) AND #3 FROM ROUND VALVE TO THE BRAKE CALIPER,I TRIED TO PREFILL LINES WITH FLUID BUT I STILL HAVE NO PRESSURE.,ONE DAY PRESSURE NEXT DAY NOT.THANKS FOR YOUR HELP.

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Take the master cylinder off the bike and try to "bench bleed" it in a vise.Fill with fluid and put you finger over the outlet,push plger in with a screw driver.If no or very little pressure replace the master cylinder.
If it does pressure up install and bleed system one section at a time.When bleeding a dry system DO NOT LET THE RESERVOIR RUN LOW or you will get air in and be there forevere bleeding.

Posted on Jan 17, 2009

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Posted on Jan 02, 2017

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