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bobross bobross is offline
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Join Date: Jan 2014
Location: Portland, Oregon
Posts: 37
Soft brakes after bleeding system

this is a continuation of a series that started with "Rotational Noise" followed by Rebuild Brake Caliper.

Summary. The rotational noise was the nearly gone rear brake pad and scored disc. BBought the new Brembo disc and new pads from Carpimoto at big savings over going to dealer. Installed all.

Initially not getting fluid through the bleed screw and wondered if the caliper was bad. Just needed to keep pumping. Got it to work. In the process, busted the rear brake hose. So ordered new SS Spiegler hoses.

To do the hoses, I figured I would need access to the ABS system to bleed, so took off the bodywork and removed the tank. Installed the new brake lines, and new pads in the front.

Also, as long as the tank was off, put a new fuel filter in the tank, new air filter, installed the quick disconnect fuel lines. New battery, as the old one was 5 years old (battery from Interstate, higher amp/hours and higher CCA THAN bmw BATT, AT HALF THE COST). Even bought a AF-xied unit and hooked it up. (it has been raining steadily here in Oregon so is a good time to do all this stuff, and I have a nice warm garage to do it in.)

CURRENT PROBLEM: SOFT FRONT BRAKES. I have bled this several times. Rear brake is taut, Front is soft, unlike before I began all this work. I have bled it from the screw on top of the ABS II unit, and at the calipers, both places by opening the screw and squeezing the front brake handle, keeping the reservoir topped up. No bubbles. Don't see any leaks at any of the fittings. But, pushing the bike around in the garage, and squeezing the brake, the front brakes grab, but are really soft in comparison to before.

Will this go away, or have I missed something.?
Old 12-02-2017, 04:51 PM
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