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Mechanical and Technical Mechanical and technical topics, help, and discussions

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  • 1 Post By dragracer1951
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Jul 29th 2016, 02:15 PM   #1
 Sentinel's Avatar
 
  Jun 2016
  Poor Tortured

  2015 Kawasaki Concours 14 - The Origame Sea-Dragon
brake job break

So, I bought a 1997 CBR and it is beautiful. But the brake fluid was, I think, OEM. It looked like coffee.

So, I bought fluid, some braided steel lines, new pucks, and commenced.

I've done this on probably a dozen or more bikes in my life, so I know what I'm doing.

But I never had that pump thingy that is supposed to let you get away from the stupid cycle of lever-pumping and bleed-bolt twisting.

Well, today I did. I bought the pump thingy.

And I have been in the garage for an hour and a half, grumbling at the stupid pump thingy.

The problem is getting a seal on the bleed nipple. On the CBR it is a tight fit. No room in there to work, really. That, and I cannot find the exact right size drain tube. I have the Goldilocks problem.

The pump came with a couple of nipple adapters, but none of them are perfect for the job, and I am getting air leaking at the nipple which prevents the vacuum from sucking on the caliper and brake lines and only manages to let air back into the system.

And now I am taking a break. A brake break.

The thing is, at the last minute I decided - "Fuck this" and went back to old school with pump-and-twist, and have made great progress.

I have a nice lever-feel at the moment, probably 90% of where I'd like it to be.

And so I am having an espresso and getting my second wind to go back-in and finish the job right, minus the stupid pump thingy.

I know that some folks make it work nicely, but the minutiae of my setup are conspiring against me.

However, experience and tenacity are on my side.

When indoubt: squeeze-and-twist (gently) is the right answer, work the nipple and the lever.

That'll get er there every time.

Just saying.

Jul 29th 2016, 02:38 PM   #2
 dragracer1951's Avatar
Moderator
 
  Jan 2016
  Bremerton

  07 XB12 Buell Lightning
I use a syringe from the bottom
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Jul 29th 2016, 02:53 PM   #3
 JohnnyM's Avatar
 
  Jan 2016
  Pullman, WA

  '73 CB350F, '86 VFR750F, '00 Aprilia RS250, '04 Aprilia RSV1000 R Factory(x2), '07 Star 1100 Classic
If you can fit a zip tie, or in extreme cases a loop of safety wire around the hose at the nipple, you can make a great temporary seal.
Jul 29th 2016, 03:28 PM   #4
 Sentinel's Avatar
 
  Jun 2016
  Poor Tortured

  2015 Kawasaki Concours 14 - The Origame Sea-Dragon
I tried the zip tie, but there is a small irregular section of the "circle" the zip tie forms when you clamp it down, the part near the buckle, that was letting-in air. It is really a problem of a tight work area and not being able to easily get tools in there.

I just came back in (fek it's hot) from the garage. I am 95% happy with the brake feel now, and will leave it at that.
Jul 29th 2016, 03:40 PM   #5
 dragracer1951's Avatar
Moderator
 
  Jan 2016
  Bremerton

  07 XB12 Buell Lightning
I was just out futzin with my Buell. You're right...its hot
Jul 29th 2016, 03:54 PM   #6
 jared p's Avatar
 
  Jan 2016
  here

  there
so, not to one up you but...i used the stupid thing just putting the tubing straight on it and holding it down...before realizing there was the little black rubber adapter, which then worked perfectly, which i found out once i was done with both sides. however, if you put the tube straight on with a zip tie it should work fine.
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