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John Clauss
Flying Brick Rider
Joined: 04 Apr 2003
Posts: 731
Location: Robesonia, PA
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 Posted: Mon Mar 25, 2024 10:33 am Post subject: Bleeding brakes on ABS II |
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Hello all,
My K11LT (1997) needs new brake hoses. I got a new set of Stainless steel lines. I am trying to figure out how to bleed the brakes once I install the new lines. Are there instructions somewhere that I can read?
Thanks,
John
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1997 K1100LT
1975 R75/6
It will bring you so close to nausea, it will make you sick! - Big Al |
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Flying Duck
PsyKotic Waterfowl
Joined: 27 Jan 2005
Posts: 10098
Location: Bumf***, WA
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John Clauss
Flying Brick Rider
Joined: 04 Apr 2003
Posts: 731
Location: Robesonia, PA
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| Posted: Tue Mar 26, 2024 8:27 am Post subject: |
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Thank you sir! That looks to be fairly straight forward. Do you see any reason why doing the lines on the LT would be different from the RS?
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1997 K1100LT
1975 R75/6
It will bring you so close to nausea, it will make you sick! - Big Al |
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Grunter
Flying Brick Rider
Joined: 30 Sep 2015
Posts: 369
Location: North East England
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| Posted: Tue Mar 26, 2024 6:10 pm Post subject: |
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You will find that the use of a hand operated vacuum bleeder, or one that works off air pressure (Uses an inflated tyre as the pressure source at around 25- 30psi). Either will do the job very well. Just tape back the brake levers and let the air do the work.
If there is a persistent point air gets trapped, there are two bleed nipples on top of the modulator marked front and rear (in German unfortunately). I have never had to use them but they are there if need be.
Motobins supplied the lines for my R1100Rs and I ordered them as a kit for the specific bike and they made them up for me as the set. Because I had ordered a full set they also gave me a good discount too!
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1997 K1100LT
1994 R1100RS |
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Flying Duck
PsyKotic Waterfowl
Joined: 27 Jan 2005
Posts: 10098
Location: Bumf***, WA
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| Posted: Tue Mar 26, 2024 9:52 pm Post subject: |
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Understanding and leveraging gravity works better than a pressure bleeder. Letting air bubbles float to the top works better than trying to force things.
I've tried both and my pressure bleeder never gets used.
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86-97 K75F(K75/100/1100 Frankenbrick)
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John Clauss
Flying Brick Rider
Joined: 04 Apr 2003
Posts: 731
Location: Robesonia, PA
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| Posted: Tue Apr 09, 2024 9:45 am Post subject: |
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| Grunter wrote: |
Motobins supplied the lines for my R1100Rs and I ordered them as a kit for the specific bike and they made them up for me as the set. Because I had ordered a full set they also gave me a good discount too! |
I ordered mine from Speigler. Not a bad price. Now just to get it done.
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1997 K1100LT
1975 R75/6
It will bring you so close to nausea, it will make you sick! - Big Al |
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Grunter
Flying Brick Rider
Joined: 30 Sep 2015
Posts: 369
Location: North East England
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| Posted: Thu Apr 11, 2024 4:04 am Post subject: |
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One tip from an independent engineer if you are replacing the hoses and the system is completely drained it is also good practise to strip the master cylinder as well.
Over time corrosion will build up at the open end of the cylinder and working the lever over the full stroke could allow the seals to possibly run over this rough corrosion and damage the lip of the seal.
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1997 K1100LT
1994 R1100RS |
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kirkkw
Big Brick Rider
Joined: 11 Jan 2004
Posts: 67
Location: Near Austin Tx
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| Posted: Thu Jul 18, 2024 12:29 pm Post subject: Brake bleeding |
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| Grunter wrote: |
Over time corrosion will build up at the open end of the cylinder and working the lever over the full stroke could allow the seals to possibly run over this rough corrosion and damage the lip of the seal. |
This happened to me when bleeding the brakes in an auto. On my bikes I try to never press the lever past about 1/2 of the way from the points 1) I feel pressure when pulling the lever and 2) the handlebar. Each stroke doesn't get much fluid drained, but hopefully it will avoid damaging the master cylinder.
Also, many years ago I ordered a Speigler kit of lines through Tom Cutter for the K11RS and it came with incorrect lengths of lines. Maybe Speigler has corrected this by now. I suggest you measure your lines and verify what is in their kit.
Ken
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1996 K1100RS, 1976 CB750A, 2017 Triumph Trophy, 2020 R1250RT, 2022 RE Classic 350 |
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