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Old 04-03-2013, 07:19 PM   #1
B.T.R.
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BRAKE FLUID IS DARK

JUST WAS IN THE GARAGE AND LOOKED AT MY BIKE AND THE RESERVOIRS WERE REALLY DARK IN COLOR. BIKE ONLY HAS 3300 MILES. BRAKES WERE FINE LAST TIME I RODE. I FLUSHED FRONT AND REAR WITH NEW FLUID. ANYONE SEEN IT JUST ALL OF A SUDDEN GET DARK LIKE THAT?
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Old 04-03-2013, 07:21 PM   #2
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My rear brake fluid goes dark fast. I figure it's due to the heat from the exhaust.
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Old 04-03-2013, 07:23 PM   #3
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Is it salty?
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Old 04-03-2013, 07:29 PM   #4
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slow as molasses
 
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DIDN'T TASTE IT.....
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Old 04-03-2013, 07:31 PM   #5
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lol its fine dude, mine gets like that too
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Old 04-03-2013, 08:09 PM   #6
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They were probably dark from the when you bought your bike...When I bought my Ape they were super black....really doesnt affect your braking unless your at the track really....I would still drain and bleed them
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Old 04-03-2013, 08:51 PM   #7
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A combination of things make brake fluid get dark: mainly moisture, debris and heat.
If you ride aggressively regularly your fluid will become contaminated. More so if you have steel braided lines and standard DOT 4 fluid that has a lower boiling point than a higher performance fluid such as Motul RBF for example.
The moisture in the system s the biggest concern. Not only because of the corrosive factor it adds, but because it lowers the boiling point of the brake fluid, which will cause your lever to require more travel/effort.
I'd recommend flushing and bleeding the system.
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Old 04-03-2013, 09:03 PM   #8
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Flush and bleed again and see if it helps..
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Old 04-03-2013, 10:38 PM   #9
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I was watching some car show and they were showing different brake fluids and giving maintenance recommendations. They had a jar of pure brake fluid and a jar of 50/50 fluid and water. Oddly enough, the 50/50 wasn't as dark as I would have thought. What's up with the Super DOT 4 they were talking about?
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Old 04-03-2013, 11:40 PM   #10
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Quote:
Originally Posted by Patrick View Post
A combination of things make brake fluid get dark: mainly moisture, debris and heat.
If you ride aggressively regularly your fluid will become contaminated. More so if you have steel braided lines and standard DOT 4 fluid that has a lower boiling point than a higher performance fluid such as Motul RBF for example.
The moisture in the system s the biggest concern. Not only because of the corrosive factor it adds, but because it lowers the boiling point of the brake fluid, which will cause your lever to require more travel/effort.
I'd recommend flushing and bleeding the system.
so often should you change it if you do a lot of track days?
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Old 04-04-2013, 07:03 AM   #11
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ALL FLUID CHANGED AND BLED READY FOR SUNDAY
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Old 04-04-2013, 07:07 AM   #12
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When are you doing a track day?
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Old 04-04-2013, 07:15 AM   #13
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SOON. JUST BEEN DEALING WITH MY FATHER. HAD BRAIN SURGERY AND THEN GO MENINGITIS. SEEMS LIKE HE CAN'T CATCH A BREAK.
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Old 04-04-2013, 07:18 AM   #14
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sorry to hear about your father, hope things improve for him.
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Old 04-04-2013, 07:22 AM   #15
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I hope everything is back to normal soon
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Old 04-04-2013, 12:17 PM   #16
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