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Z1R Front Master Cylinder Rebuild Kit Substitute 09 Aug 2014 20:49 #643278

  • saxjonz
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HEHEHEHEHEHE :laugh: , I don't know where I read that the plungers were the same. HOWEVER, I DID in fact find someone who paid someone to reproduce these in Australia...www.kawariders.com.au/showthread.php?204...&highlight=diaphragm
I hope this helps. Either that or we could get a group of people together to have these reproduced stateside?
Wow, I didn't realize that everyone needed these. Hahaha, interesting.
79 LTD B3
80 LTD B4 1075 kit JE Pistons .410 cam grind, Bassani, 31 keihin CR Specials...
1980 Z1R, 2002 ZRX1200, 2003 ZRX1200
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Z1R Front Master Cylinder Rebuild Kit Substitute 10 Aug 2014 22:21 #643430

  • weales
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You're right about the bloke who got some F/Brake reservoir diaphragms made up - I bought one from him recently for my Z1-R and its a great fit (he may have some left). Got some front caliper seal kits thru Z1 Enterprises but the dust boots don't fit the pistons - have sent them a query and am waiting for a reply; I got my brake hoses from Z1Parts - pretty good price. The Z1Enterprises master cyl kit (subject of this thread) fits well - will let you know how the whole system performs when I get it back itogether.
Current Project
1968 Norton P11A Desert Sled
Other bike (and daily ride)
2004 Yamaha FZR 600
Previous Bikes
78 Z1-R (resto)
91 Zephyr 750
73 Mach IV (Resto)
78 Z1-R
78 Z1-R (stolen)
76 Z900
76 Z650
73 Mach IV
72 Mach III
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Z1R Front Master Cylinder Rebuild Kit Substitute 12 Aug 2014 22:59 #643745

  • saxjonz
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weales, very nice. Glad to hear that. Hopefully, I get this girl back together before the end of the week. So many projects to complete and so many errands to complete. I will hopefully get my finances in order to at least get my bikes done and will post up pics of my rides and let you know how it goes. If you could pm me the price you paid to get that diaphragm I would be stoked. I'm glad that the world is a whole lot smaller today than it was ten years ago.
I'm dying to transport at least one of my bikes to Australia someday in the near future so I can ride with those who really love the Z bikes the most IMO. lol
79 LTD B3
80 LTD B4 1075 kit JE Pistons .410 cam grind, Bassani, 31 keihin CR Specials...
1980 Z1R, 2002 ZRX1200, 2003 ZRX1200
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Z1R Front Master Cylinder Rebuild Kit Substitute 15 Aug 2014 17:36 #644099

  • D3
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weales wrote: You're right about the bloke who got some F/Brake reservoir diaphragms made up - I bought one from him recently for my Z1-R and its a great fit (he may have some left).


Glad to help getting that Z1R back on the road Bill.

Fella's I hope to have next batch of diaphragms in 10 days, will post up here with all info and better pics when they arrive.

AUD$45.00 posted anywhere in world.

These have been an absolute nightmare to have made, but end result is worth it.

One on left is repo on right is NOS genuine Kawa 43028-1003.













[URL[/IMG][/URL]
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Last edit: by D3.

Z1R Front Master Cylinder Rebuild Kit Substitute 15 Aug 2014 20:08 #644141

  • eddiem
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Put me in for 2
1976 Kz900
1978 Kz1000
1978 Z1r
1982 Kz1100 A2
1975 Z1b-900
1975 Z1b-900
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Z1R Front Master Cylinder Rebuild Kit Substitute 16 Aug 2014 02:14 #644169

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Done
[URL[/IMG][/URL]

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Z1R Front Master Cylinder Rebuild Kit Substitute 18 Aug 2014 22:15 #644420

  • saxjonz
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Alright Weales, I'm in for at least one and possibly a spare. Please send a PM. Thanks for taking the initiative for doing this for us!
79 LTD B3
80 LTD B4 1075 kit JE Pistons .410 cam grind, Bassani, 31 keihin CR Specials...
1980 Z1R, 2002 ZRX1200, 2003 ZRX1200
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Z1R Front Master Cylinder Rebuild Kit Substitute 18 Aug 2014 22:25 #644423

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Hey there saxjonz - member D3 is the guy who has put in all the hard yards and got these manufactured for us peons. Address your requirements to him and I'm sure he'll be only to happy to assist.
Current Project
1968 Norton P11A Desert Sled
Other bike (and daily ride)
2004 Yamaha FZR 600
Previous Bikes
78 Z1-R (resto)
91 Zephyr 750
73 Mach IV (Resto)
78 Z1-R
78 Z1-R (stolen)
76 Z900
76 Z650
73 Mach IV
72 Mach III
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Z1R Front Master Cylinder Rebuild Kit Substitute 20 Aug 2014 07:41 #644592

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Well l now have Reproduction stock of said diaphragms 43028-1003 for all models Z1R.

Copied from a NOS genuine diaphragm

Correct material- EPDM compatiable with Glycol-ether Based DOT 3, 4, 5.1 brake fluid (NOT SILICONE BASED DOT 5)

Correct hardness as per IRHD ISO 48 (INTERNATIONAL STANDARD)

Posted anywhere in the world AUD$45.00

If you need (one or two)I have large amount avai. my email is- This email address is being protected from spambots. You need JavaScript enabled to view it.







In the next few months l hope to have 43028-1002 diaphragms for the KZ1000A2, KZ1000A4 (MK2) and some police bikes, KZ400,650,750 that use the Trapezoid type master cylinder.

Thankz Ross.
[URL[/IMG][/URL]
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Z1R Front Master Cylinder Rebuild Kit Substitute 20 Aug 2014 08:18 #644596

  • DOHC
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No eBay APP ID and/or Cert ID defined in Kunena configurationHey D3. Is there any chance that you also have a replacement or substitute for the rubber damper/washers used to mount the Z1R master cylinder reservoir? They are part number 92075-1038.

I made some once but it was a pain, and now I need more...

I guess there are still some out there, but the price is high...

'78 Z1-R in blue , '78 Z1-R in black, '78 Z1-R in pieces
My dad's '74 Z1
'00 ZRX1100

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Z1R Front Master Cylinder Rebuild Kit Substitute 20 Aug 2014 08:28 #644599

  • D3
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Sorry don't have any those.
[URL[/IMG][/URL]

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Z1R Front Master Cylinder Rebuild Kit Substitute 20 Aug 2014 08:32 #644600

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In my last post l posted a pic my Z900A4 in signatures, but it appears too big, any ideas how to remove? Thankz
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