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Why are my brakes squeeling?
- BINJIEU
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- Always leave 'em smiling!
Got a 77 KZ 650. Runs pretty well, but the front brake squeals when I apply brakes. Thought perhaps the pads were worn so I changed them. Twenty minutes later, sqealing again. If I spray with brake cleaner, OK for
a scoche, then squealing again. I noticed what seems like aluminum paint on the rotor, so I sprayed it off. OK for a bit, now, squealing again. HELP!!!
77 KZ650 w/ Dyna S ignition and stock coils
81 BMW r65
91 BMW k100rs 4v
Lakeland, FL.
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- Patton
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Hi all,
Got a 77 KZ 650. Runs pretty well, but the front brake squeals when I apply brakes. Thought perhaps the pads were worn so I changed them. Twenty minutes later, sqealing again. If I spray with brake cleaner, OK for
a scoche, then squealing again. I noticed what seems like aluminum paint on the rotor, so I sprayed it off. OK for a bit, now, squealing again. HELP!!!
Play Dixie?
1973 Z1
KZ900 LTD
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- RonKZ650
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I went through this a long time ago and never had an aftermarket pad fitted to the front of a KZ650 that didn't squeel so bad pedestrians would be running for cover at 100 yds away. Not acceptable to me. Look on ebay for factory pads. Don't bother with all the fixes like slotting the pads, using brake stop squeel goop ect, because they will still squeel.
321,000 miles on KZ's that I can remember. Not going to see any more.
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- BSKZ650
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77 kz650, owned for over 25 years
77 ltd1000, current rider
76 kz900, just waiting
73 z1,, gonna restore this one
piglet, leggero harley davidson
SR, Ride captian, S.E.Texas Patriot Guard Riders.. AKA KawaBob
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- KaZooCruiser
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The shim is part of the piston side pad.
I tried a couple different things. Aftermarket pads don't have the shim, so you might be able to get by without it, using copper Permatex like Patton did.
I found RTV by itself was not enough.
I got some brass .005 shim stock and used that in conjuction with some grey RTV between the shim and pad.
You can cut .005 with a pair of scissors. An assortment of .002, .003, and .005 is available at ACE hardware.
Way back when I had my one and only and never again BMW motorcycle, the rear brake shoes wore out. The dealer wanted $44.00 for one shoe and $45.00 for the other. I found a local brake reliner, who relined the shoes for $6.00 each.
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- 650ed
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Post edited by: 650ed, at: 2007/09/17 22:44
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
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- Mark Wing
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Back in the 70's there was a mag write up that told you to drill small holes in the pads and put pencil led in them.
Mark
Jesus loves you Everyone else thinks your an ***
77 KZ650 C1 with ZX7 forks, GPZ mono rear, wider 18 police wheels and Yoshimura motor.
Yorba Linda Cal.
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- Dr Zed
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Cheers
Tony
650ed wrote:
Before I found sets of original pads I stopped my aftermarket (EBC) pads from squealing by cutting a chamfer on the leading and trailing edges and using blue antisqueal (Permatex I think) on the backs. The only time they made noise after that was when the rotors got very dusty. Ed<br><br>Post edited by: 650ed, at: 2007/09/17 22:44
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- KaZooCruiser
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BINJIEU wrote:
. . . front brake squeals when I apply brakes. Thought perhaps the pads were worn so I changed them. Twenty minutes later, sqealing again. If I spray with brake cleaner, OK for a scoche, then squealing again. OK for a bit, now, squealing again . . .
I think BSKZ650 is right, the problem is a rotor that is glazed.
BSKZ650 wrote:
take some 80 grit sand paper and spin the wheel, scuff the shine off the rotor and run it across the pads, this will clean any glaze off and allow the pads to seat on their own
It's a real common problem on cars, if you don't machine the rotors, new pads will not wear in properly, and sometimes start to squeal right away.
You might scuff everything up, and clean the caliper pins and lube them up, and then see (hear) where you are.
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