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Cauf61
 Post subject: 1973 H1D front brake
PostPosted: Sun Nov 15, 2020 7:55 am 

Joined: Fri Nov 13, 2020 6:59 am
Posts: 8
Location: Antwerp Belgium
Hello
Like some of you i can not get my front brake "hard". The master cylinder and caliper i have restored and don't leak.
So look fine to me now. But after many methods of flushing the brake remains soft.The rubber lines do flex and move a lot under pressure. Maybe i should buy new ones. Which can you advice to buy (in Europe ! ) and stay as original as possible. No steelflex so.

I also read that the brake switch can cause this. Anybody has experience on this ?

The brake pads are brand new but id did not check if they are perfect parallel to the disk. If they are not i have read that this also can cause soft brake feel.


Grts
Patrick Belgium
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Jim
 Post subject: Re: 1973 H1D front brake
PostPosted: Sun Nov 15, 2020 8:37 am 
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Joined: Wed Jun 08, 2011 11:34 pm
Posts: 9840
Location: North Central NC
I always notice a slightly softer feel after changing pads. Then it returns to normal after the pads wear to fit the disk.

How soft is it? Can you squeeze the lever all the way to the handlebar? If not, it might be best to wait until you ride it for a while to see how bad the problem really is.

Welcome to the board Patrick!

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If it surges, that's normal, upshift.
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Cauf61
 Post subject: Re: 1973 H1D front brake
PostPosted: Sun Nov 15, 2020 10:31 am 

Joined: Fri Nov 13, 2020 6:59 am
Posts: 8
Location: Antwerp Belgium
No not really to the handlebar, but for my 30 year experience quite soft.
After a night under pressure ( for flushing the air ) the feel stays the same. So the system is not loosing al it pressure.
That is a positive point.
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Cauf61
 Post subject: Re: 1973 H1D front brake
PostPosted: Sun Nov 15, 2020 10:38 am 

Joined: Fri Nov 13, 2020 6:59 am
Posts: 8
Location: Antwerp Belgium
PS Here is the current status of my restoration. :-)


You do not have the required permissions to view the files attached to this post.

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Paola
 Post subject: Re: 1973 H1D front brake
PostPosted: Wed Nov 25, 2020 1:47 am 

Joined: Fri Mar 06, 2020 5:54 am
Posts: 53
Location: Italy,
in my mechanical ignorance, it makes me think of a not very thick oil ....
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Ja-Moo
 Post subject: Re: 1973 H1D front brake
PostPosted: Wed Nov 25, 2020 9:46 am 
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Joined: Tue Jun 07, 2011 6:37 am
Posts: 10460
Location: Rio Rancho, New Mexico
The stock rubber line is old and and can be dangerous. The inner lining separates and can block the fluid flow locking or not allowing flow. And as you observed, they expand, so yes you will get a soft feel until you find a nos line or go steel braded.

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Twist the throttle, tilt the horizon, and have a great time. What triples are all about...........
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H2RTuner
 Post subject: Re: 1973 H1D front brake
PostPosted: Wed Nov 25, 2020 11:50 am 

Joined: Thu Jun 09, 2011 11:25 am
Posts: 3146
Over the decades, I have used braided steel lines, but have also "gotten away with" using a rubber hose cover over the braid. Makes the braided lines look fairly close to stock, but not 'historically correct'.

Just depends on how much stealth you wish to be.
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pierrot974
 Post subject: Re: 1973 H1D front brake
PostPosted: Sun Nov 29, 2020 11:02 pm 
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Joined: Wed Jun 11, 2014 10:13 am
Posts: 108
Location: Saint-Paul, Reunion Island GMT + 4
Hi.
Cauf 61, do you know Atelier Moto Legende in France ?

https://www.ebay.fr/str/AML-Parts/KAWAS ... 5382151015
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Cauf61
 Post subject: Re: 1973 H1D front brake
PostPosted: Thu Dec 10, 2020 1:07 pm 

Joined: Fri Nov 13, 2020 6:59 am
Posts: 8
Location: Antwerp Belgium
pierrot974 wrote:
Hi.
Cauf 61, do you know Atelier Moto Legende in France ?

https://www.ebay.fr/str/AML-Parts/KAWAS ... 5382151015


Yes
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tankie
 Post subject: Re: 1973 H1D front brake
PostPosted: Fri Dec 18, 2020 8:53 am 

Joined: Thu Jun 09, 2011 1:12 am
Posts: 238
Location: Queenborough U.K
Here are some repro hoses and yes the seller is OK.
https://www.cruzinimage.net/2018/06/14/ ... teel-pipe/
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