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Old 04-29-2013, 11:31 AM   #1
OrangeTomatoe
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Squeeze front brake to throttle - 2007 GSXR 600

Hi all,

Long time lurker, but now I have a question.

I have a 2007 GSXR600 and have had some front brake issues recently. A few months ago I noticed that I was able to squeeze my front brake all the way back to the throttle. My brake is dialed to 6. I took it to get repaired and the shop suggested bleeding the brakes first and see if the problem came back. It was ok for a bit, but unfortunetly the problem came back within a few days. They then suggested that the master cylinder be replaced. That seemed to have solved the problem...until this Saturday.

I went for a ride early Saturday, before all that rain thankfully, and noticed that I was able to squeeze my front brake all the way back to my throttle...again. I can stop, but I do not feel all that safe riding with such limited braking.

Any suggestions as to what it might be and/or possible remedies?


Thanks.
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Old 04-29-2013, 11:37 AM   #2
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Dial it down less. If i can remember correctly the lower you have it dialed, the less travel. Could be wrong, haven't messed with it in a while.
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Old 04-29-2013, 11:37 AM   #3
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Brake lines
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Old 04-29-2013, 12:02 PM   #4
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What did u replace your master cylinder with? Aftermarket or another MC from a gsxr?
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Old 04-29-2013, 12:09 PM   #5
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It was a GSXR master cyclinder.

My brake has been diabled on 6 and I have never changed it. When I replaced the master cyclinder I had a ton of resistance/pressure when trying to squeeze the brake. Now I can get it to the throttle with little resistance.
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Old 04-29-2013, 12:11 PM   #6
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brake lines, get some upgraded ones! happen to me before, air slowly sneaks in
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Old 04-29-2013, 12:12 PM   #7
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Also have you checked your brake pads
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Old 04-29-2013, 12:22 PM   #8
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I was thinking the brake lines were letting air in. =/

I had the 7500 mile inspection done recently and don't recall them mentioning anything about my brake pads needing to be replaced anytime soon.
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Old 04-29-2013, 12:34 PM   #9
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If its tokico calipers thats likely the issue.
I had the same problem and switched to nissins
Much better brakes now
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Old 04-29-2013, 01:39 PM   #10
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Thanks guys.

I'll look into the suggestions.
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Old 04-29-2013, 01:42 PM   #11
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yeah you can get a whole brake system off ebay fairly cheap.
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Old 04-29-2013, 02:56 PM   #12
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I am upgrading to the r1 mono blocks with steel lines and r1 brembo master. Should be a really great upgrade from stock. I had to blead my master after sitting for a while between trackdays.
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