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Master Cylinder suggestions?

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A100man
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Joined: 19 Aug 2013
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PostPosted: 11:34 - 01 Jan 2020    Post subject: Master Cylinder suggestions? Reply with quote

The m/c on My GT250 needed a revbuild.. I cleaned out the original parts but it went soft quickly..??

Anyhow I bought a (cheap) rebuild kit and now it won't bleed at all.. even at the top union..

So I figured bollocks to it i'll buy a new generic pattern unit or a something from a more recent bike that works (e.g. my XJ550 sports a GPZ600 m/c)

Suggestions welcome.
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WD Forte
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Joined: 17 Jun 2010
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PostPosted: 14:21 - 01 Jan 2020    Post subject: Reply with quote

Have you tried sticking your thumb over the top union hole
and working the lever to get initial pressure and seat the seal?
( assuming proper assembly that is)

Check the return hole isn't blocked as well
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A100man
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Joined: 19 Aug 2013
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PostPosted: 14:38 - 01 Jan 2020    Post subject: Reply with quote

WD Forte wrote:
Have you tried sticking your thumb over the top union hole
and working the lever to get initial pressure and seat the seal?
( assuming proper assembly that is)

Check the return hole isn't blocked as well


Ta..

I'll give it another go at that before I finally throw the towel in. Return pin prick hole checked a couple of times earlier in the process..
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Now: A100, GT250A, XJ598, FZ750

Then: Fizz, RS200, KL250, XJ550, Laverda Alpina, XJ600, FZS600
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redeem ouzzer
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PostPosted: 16:27 - 01 Jan 2020    Post subject: Reply with quote

KTM Duke or Aprillia 125.
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A100man
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PostPosted: 19:51 - 11 Jan 2020    Post subject: Reply with quote

Just to tie this one up. I has reassembled some components in the wrong order, Embarassed corrected it but still gave weak pressure. Bought a secong hand Nissin from of a recent CBR125 for a tenner, this now has nowfirmed things up.. suspect though I also need to remew all the copper washers.. again...
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Now: A100, GT250A, XJ598, FZ750

Then: Fizz, RS200, KL250, XJ550, Laverda Alpina, XJ600, FZS600
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Easy-X
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Joined: 08 Mar 2019
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PostPosted: 21:47 - 11 Jan 2020    Post subject: Reply with quote

Just a thought but if you're swapping out the master don't forget to check the line for bulges and cracks while you're at it.
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A100man
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PostPosted: 12:34 - 12 Jan 2020    Post subject: Reply with quote

Easy-X wrote:
Just a thought but if you're swapping out the master don't forget to check the line for bulges and cracks while you're at it.

Thanks - line is new braided type.. Thumbs Up
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Now: A100, GT250A, XJ598, FZ750

Then: Fizz, RS200, KL250, XJ550, Laverda Alpina, XJ600, FZS600
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Old Thread Alert!

The last post was made 4 years, 77 days ago. Instead of replying here, would creating a new thread be more useful?
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