CBR 600F3 1995 - 1998 CBR 600F3 Forum

Did I bleed the brakes improperly?

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Old Sep 5, 2008 | 05:59 PM
  #1  
dragonxero13's Avatar
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Default Did I bleed the brakes improperly?

So after finally getting my bleeder valve, I was able to install everything, align my wheels, bleed my brakes and so on. So I took it out on a ride and the wheel moves straight with no problems thanks to the string alignment, thanks to that fella that helped me with that link.

Now I'm checking the rear brakes. The rear brakes feel soft, so soft that I couldn't low side if I tried to. I would drive around my neighborhood at around 25 and stop ASAP as if something was coming out of no where. Using both front and rear brakes, the front brake is still strong, that I haven't touched yet. While my rear brakes feel really soft, because I Fed it up? I would press extremely hard on my rear brake and it would only feel about 15% of the front brake's stopping power. I used the old tube and wrench way and I'm thinking about buying a MityVac after this .. or just paying 80 for a mechanic to do it ..

Regardless, I just need some help or some kind of tips.
 
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Old Sep 5, 2008 | 06:28 PM
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Default RE: Did I bleed the brakes improperly?

I dont know if you've already taken this into consideration, but the front brake is 70% of the bikes stopping power. Not to mention there is only one rotor on the rear and two on the front. I use my rear brake as a compliment to the front, it's not supposed to be as strong as the front, just helps out.
 
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Old Sep 5, 2008 | 06:35 PM
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Default RE: Did I bleed the brakes improperly?

Yeah, I know. I still feel as if the rear brake is so soft... maybe too soft .. The lines are hard .. I didn't see any bubbles when I was about done bleeding it .. I've read all the tips that I should maybe have the brake pressed down for a night and see how that goes. ..Maybe I can get someone that rides to see if my rear brakes are too soft or if it's just me from not riding in so long.
 
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Old Sep 5, 2008 | 06:44 PM
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Default RE: Did I bleed the brakes improperly?

it could be you bled them too much and now there's not enough fluid in the line to make a firm press
Not to say there's not fluid, just not sufficient amounts, the line could be full but you might need to fill the reservoir more
 
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Old Sep 5, 2008 | 06:59 PM
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Default RE: Did I bleed the brakes improperly?

The reservoir is full. I topped it off and while I was tightening it it actually dripped out as well due to me tilting the reservoir to tighten it.
 
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Old Sep 5, 2008 | 08:43 PM
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Default RE: Did I bleed the brakes improperly?

Sounds like you still have air in the lines, do the bleeding process again, the more you do it the firmer it will get.
 
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Old Sep 5, 2008 | 11:28 PM
  #7  
IDoDirt's Avatar
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Default RE: Did I bleed the brakes improperly?

Another thing to check is if the brake pedal is bottoming out on the exhaust. I've seen different manufacturers of exhaust systems route the pipes close to the pedal. When pressing the rear brake pedal, it hits at the bottom of the stroke and prevents full actuation. Not real common, but an easy visual to check.
 
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