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post #1 of 5 Old Sep 12th, 2013, 7:53 am Thread Starter
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spongey rear brake

My 2000 my LT has developed a rear break problem. Over the last couple of rides the rear brake has gone spongey. I have checked the reservoir , its over half full. checked for leaks , non to be found . There are no leaks on the master cylinder, the pistons on the caliper were checked and were free approx. 1500 miles ago and pads replaced. Does anyone have any idea what to check next. If I pump the brake and keep it under pressure overnight the brakes feel normal for a few rides.
Any help would be greatly appreciated
Thanks in advance
Dave
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post #2 of 5 Old Sep 12th, 2013, 8:35 am
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Re: spongey rear brake

Well, I gotta believe a caliper is a caliper. I just had these exact same symptoms with my Honda Ridgeline. Turns out the slider pins were locked up. Freed, cleaned and greased and spongy brake feeling is gone!
Easy to check.
HTH.

Doug B.
2000 LT purchased July 2013
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post #3 of 5 Old Sep 12th, 2013, 11:22 am
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Re: spongey rear brake

Did you ever replace the brake lines ;sometimes that can do strange things because they will look good on the outside but will collapse in the inside.

Gary
2003 K1200LT
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post #4 of 5 Old Sep 12th, 2013, 11:44 am
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Re: spongey rear brake

sounds like air but if the piston in the master cylinder not moving freely so that it does not return completely you can get the same feeling, stoke is reduced, need to get new master they do not sell parts for it

Gary
2018 R1200RT
Past rides
2012 K1600GTL
2000 K1200LT
1992 K1100LT
2000 V Star 650/Velorex sidecar
1985 K100RT
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post #5 of 5 Old Sep 12th, 2013, 12:51 pm
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Re: spongey rear brake

Caliper is a hard mount on the LT the floating is done at the rotor so no slide pins. My bet is on 14 year old brake lines that are about to pop. Seriously the LT at that age is ready for a brake line failure. But check to make shure there is some free play in the foot pedal to push rod into the MC. That can cause a problem if there is none.

John
2009 K1300GT Red Rocket
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2006 Bushtec Turbo+2 Spell
2004 330 Ci Convertable
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Have ridden a Motorcycle in all 48
But lack DE, MA, RI and CT with the 2005 LT

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