919 brake question? Pad rubbing? - Wrist Twisters
 
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post #1 of 8 Old 08-13-2010, 08:57 AM Thread Starter
919, CRF250X, LC4, CB400F
 
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919 brake question? Pad rubbing?

On my 919, on my front left brake caliper, the inside pad appears to be rubbing on the rotor. Me not being a super mechanic, what could it be? Is there an easy fix? Some troubleshooting tips, any help is appreciated!

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post #2 of 8 Old 08-13-2010, 09:48 AM
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Does the wheel still spin freely? Some drag is normal and the pad should touch the rotors.

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post #3 of 8 Old 08-13-2010, 09:59 AM
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Just lube it up with a couple squirts of wd-40...


DO NOT REALLY DO THAT!!

Be a little bit more detailed...what do you mean when you say it's "rubbing"? if you can hear a little "whisk-whisk-whisk" kind of noise, then thats normal.

If it was my bike and I was concerned, I'd pull the caliper & pads and clean everything up and put it back together. In fact, I need to pull my calipers pretty soon so that I can paint em...they are looking kinda raggedy.




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post #4 of 8 Old 08-13-2010, 11:12 AM Thread Starter
919, CRF250X, LC4, CB400F
 
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well it sounds normal then, the whisk whisk sound, but i notice a little wear (grooves) on the inside of the left rotor and it doesn't have that elsewhere on the front rotors.

its easy enough to pull the caliper and check out everything, but it's like a hundred freaking degrees out.

eta: the pads are newer too so it shouldn't be a shitty pad.

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post #5 of 8 Old 08-13-2010, 12:22 PM
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your brake pads should be rubbing, if it's squealing just go to your local car-wash and use the pressure washer to blast all the durt and brake dust of the rotors and pads

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post #6 of 8 Old 08-13-2010, 12:35 PM
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What kind of pads? Cheapos can damage your rotor. I say go spend $80 if you can and install OEM. Fucking up a rotor is $$$

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post #7 of 8 Old 08-13-2010, 01:23 PM
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Quote:
Originally Posted by The Shadow View Post
Just lube it up with a couple squirts of wd-40...


DO NOT REALLY DO THAT!!

Be a little bit more detailed...what do you mean when you say it's "rubbing"? if you can hear a little "whisk-whisk-whisk" kind of noise, then thats normal.

If it was my bike and I was concerned, I'd pull the caliper & pads and clean everything up and put it back together. In fact, I need to pull my calipers pretty soon so that I can paint em...they are looking kinda raggedy.


.
I would do that, and also when is the last time you bleed the brakes?? Fresh fluid might help too. Just my 2 cents.....

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post #8 of 8 Old 08-13-2010, 01:41 PM
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Put you wheel in the air, you should have a little drag one every pad not just one. but not enough to stop the wheel from freely spinning. If its sticking chances are one of your pistons in the caliper is stuck. A little disassembly and some brake cleaner should free it up.

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