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Author Topic: brakes not releasing  (Read 841 times)

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Offline turboboy

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brakes not releasing
« on: April 27, 2012, 06:28:51 PM »
Hi All
Just picked up my new 350/4 a couple of weeks ago. :)
and on the 2nd ride the front disc brake started lock up and not back off. :(
It wasn't enough to lock up the wheel but enough to make the engine labour at lot.
I backed the pads off with a screwdriver and they work OK but I haven't ridden it yet to see if it happens again.
Any clues on whats happening or how to fix.

Cheers
Richard
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Offline trueblue

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Re: brakes not releasing
« Reply #1 on: April 27, 2012, 06:47:35 PM »
Adjust the pad to specs, then pull the brakes on a few times and see if it locks up, if it does crack the bleeder, if it releases the return hole to the master cylinder is blocked, if it doesn't then I would guess at your caliper sticking.
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Offline DavePhipps

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Re: brakes not releasing
« Reply #2 on: April 27, 2012, 09:12:38 PM »
check the caliper piston for corrosion and replace the piston seal. Also like Trueblue said check the fluid return in the MC.
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Offline oldbiker

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Re: brakes not releasing
« Reply #3 on: April 28, 2012, 12:30:12 AM »
I has the same thing after my bike had stood a while.  Turned out to be corrosion or other muck between the alum cylinder and the steel plate on the back of the brake pad. Cleaned up and worked fine.
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Offline Bailgang

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Re: brakes not releasing
« Reply #4 on: April 28, 2012, 01:08:00 AM »
+1 to all the above. In my case it was a blocked return hole in my MC.
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Scott


71 cb350 twin
77 cb750 F2
83 gl1100 Interstate
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