03 600rr front brake problems - 600RR.net
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post #1 of 9 (permalink) Old 05-08-2014, 08:53 PM Thread Starter
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03 600rr front brake problems

my friend just picked up 03 600rr and we have some brake issues maybe someone know a bit more?

1. front brakes did not worked at all
2. after bleeding for 30 min, looked like they fine but then you ride the bike and press the handle no thing, after spressing it couple times it works fine again
3. replaced the master, same thing
4, replaced brake lines, same thing.
5. took complete brake set up to dealer, payed $50, was told everything is good.
came back home installed it and i have same problem.

any sugestions?
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post #2 of 9 (permalink) Old 05-10-2014, 11:07 AM
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Is there brake fluid anywhere?

If you've replaced the M/C and the lines, it does point towards the calipers.

If there is damage/flaw to the caliper around the bleed nipple, it could be causing problems?

Also, if you pump up the lever a few times, does pressure return?

A twisted seal could do the same but if the dealership says "yay" thats strange.

Where are you located?

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post #3 of 9 (permalink) Old 05-12-2014, 02:09 AM Thread Starter
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no brake fluid anythere, looks like everything working fine but as soon as i start driving the bike and trying to brake, it looses the pressure and takes couple times to press the brake lever for pressure to return.

Its very strange, but i think its calipers, but why did dealership didnt say anything about it?
got set of calipers coming in the mail, hope its solves the problem.

concord ca 94519
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post #4 of 9 (permalink) Old 05-12-2014, 10:09 AM
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If the calipers aren't the issue, check the disks. They may be slightly bent and forcing the pistons open as the wheel spins. That's why you have to pump them to regain pressure every time.
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post #5 of 9 (permalink) Old 05-12-2014, 10:52 AM
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Quote:
Originally Posted by skoobie snacks View Post
If the calipers aren't the issue, check the disks. They may be slightly bent and forcing the pistons open as the wheel spins. That's why you have to pump them to regain pressure every time.
I would hope they would catch a bent rotor :*( I been wanting to take my bike in for a brake inspection.
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post #6 of 9 (permalink) Old 05-12-2014, 11:29 AM
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Depends how deep they looked into it. When I took mine off I couldn't tell they were bent just by looking at 'em. If you have a front stand lift the bike up on it and spin the front wheel. See if you can hear anything. The front wheel should make little to no noise when it's turning.
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post #7 of 9 (permalink) Old 05-12-2014, 12:03 PM
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My guess would be the discs, Brakes are one thing you don't wanna mess with, you only get one chance to screw them up, I would bring the entire bike to the dealer if you are able to have them look at it.

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post #8 of 9 (permalink) Old 05-12-2014, 11:06 PM
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You can test if the rotors are out of round by using a magnetic dial gauge and check for concentricity and braking faces.

Was there any change in the system that STARTED this problem? or was it gradual? If it's all the sudden, I'd suspect something in the calipers; if it's gradual, I'd suggest the rotors are the problem.

I'm in Santa Clara, CA, and I MAY, big may, have a set of rotors that you can use to check if that's the problem; I'll need to check and make sure they're good to go before I tell you they are as they've been off my bike for 2 years when I went to a larger rotor.

'06 in Silver: 29K on the clock (and counting)
PCIII w/custom tune (stock AF and shortie stacks)
320mm rotors with SBK5 pads, Galfer HH rear
Full f/r FenTubo Type 2 set black on black
Nissin Radial M/C (07+)
wrapped in Mich Power Pures (aka love)
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post #9 of 9 (permalink) Old 05-18-2014, 11:05 AM Thread Starter
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still waiting for caliper to arrive, brake rotors looks ok, but i think the right one got more used when right one.
my right caliper is very dirty around the brake pads, i gues something is leaking.
ill keep you posted when i solve the problem
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