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Brakes don't seen right!

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  #1  
Old 08-27-2024, 07:44 PM
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Default Brakes don't seen right!

I took the 81 out for a test run today after doing all the stuff I've already posted about.
Bled brakes and added new DOT 5.
Front grip and rear pedal are very tight......meaning they don't feel like any air is in system.
They have a firm grip when depressed.
Now I dont know if it because Ive only been riding the 2010RK the last few months but I REALLY have to press those brakes hard to stop on the 81!
There's no way I can emergency stop!
Have I just forgotten how bad the brakes are or does something sound off to you?
The RK stops on a dime!

 
  #2  
Old 08-27-2024, 08:37 PM
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1: 81 stock brakes are not that flash
2: Your rotors may need cleaning with brake cleaner (and your pads)
3: If you have new pads or rotors, they may need to bed in
4: Your calipers may be seized
5: See #1...
 
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  #3  
Old 08-27-2024, 08:56 PM
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If O.E. is replaced...care Must be taken to Match the Pad material to the Rotor material..
Ensure the Brakes are Properly Bled...and components are clean like Spanners is saying
 
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Old 08-28-2024, 06:15 AM
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"O.E. is replaced...care Must be taken to Match the Pad material to the Rotor material.."
That's a new one on me.....I'll look into that.
I replaced the original brake system with Performance Machine sometime in the late 80s.
Rotors and pads have been cleaned.
I did spray calipers with brake cleaner but maybe not enough.

I'll take a look at everything again and maybe re-bleed.
Tx guys!
BTW...... should the brakes be as dead on as my 2010 RK?
38 years with this bike and the brakes were never "stop on a dime" quality.
 

Last edited by 81shovelhd!; 08-28-2024 at 06:19 AM.
  #5  
Old 08-28-2024, 06:47 AM
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Originally Posted by 81shovelhd!
"O.E. is replaced...care Must be taken to Match the Pad material to the Rotor material.."
That's a new one on me.....I'll look into that.
I replaced the original brake system with Performance Machine sometime in the late 80s.
Rotors and pads have been cleaned.
I did spray calipers with brake cleaner but maybe not enough.

I'll take a look at everything again and maybe re-bleed.
Tx guys!
BTW...... should the brakes be as dead on as my 2010 RK?
38 years with this bike and the brakes were never "stop on a dime" quality.
Too Many Variables to address that... for Me anyway... @Spanners39
 
  #6  
Old 08-28-2024, 08:17 AM
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Originally Posted by 81shovelhd!
"O.E. is replaced...care Must be taken to Match the Pad material to the Rotor material.."
That's a new one on me.....I'll look into that.
I replaced the original brake system with Performance Machine sometime in the late 80s.
Rotors and pads have been cleaned.
I did spray calipers with brake cleaner but maybe not enough.

I'll take a look at everything again and maybe re-bleed.
Tx guys!
BTW...... should the brakes be as dead on as my 2010 RK?
38 years with this bike and the brakes were never "stop on a dime" quality.
I can "lock up" my stock brakes, front and rear easily.
 
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  #7  
Old 08-28-2024, 08:18 AM
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Was this a complete rebuild of the brake system? Or just bleeding the brakes?

What brake fluid was in the system before you bled and added DOT 5? DOT 5 is more viscous than DOT 3 & 4. If you had DOT 3 or 4 previously, DOT 5 is not compatible and should not be mixed.

Paul
 
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  #8  
Old 08-28-2024, 08:28 AM
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Originally Posted by pgreer
Was this a complete rebuild of the brake system? Or just bleeding the brakes?

What brake fluid was in the system before you bled and added DOT 5? DOT 5 is more viscous than DOT 3 & 4. If you had DOT 3 or 4 previously, DOT 5 is not compatible and should not be mixed.

Paul
1981 certainly Came with Dot5
 
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  #9  
Old 08-28-2024, 08:30 AM
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Originally Posted by 81shovelhd!
I took the 81 out for a test run today after doing all the stuff I've already posted about.
What work was done on the brake system?
 
  #10  
Old 08-28-2024, 04:12 PM
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i had same problem front brakes basically useless
cleaned rotors replaced pads . now work perfect
 


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