KZ650 Hydraulic Clutch
- GrantKZ650
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KZ650 Hydraulic Clutch
06 Aug 2018 16:08
Weird things happen when you stare at your bike too long. The previous owner had ditched the electric starter, leaving a gaping hole in the side cover. The mismatched / road-rashed levers looked goofy. I had just installed an APE HD clutch and push rod roller kit. And there was an Honda RC51 clutch slave cylinder in my parts bin...
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- Scirocco
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Re: KZ650 Hydraulic Clutch
06 Aug 2018 16:44
A "nice" uprising sun Japanese war flag design.
Who made this hydraulic sprocket cover???
Who made this hydraulic sprocket cover???
My 1975 Z 1 B 900 Project
www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
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- GrantKZ650
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Re: KZ650 Hydraulic Clutch
06 Aug 2018 18:13
Thanks, I designed it in SolidWorks (top picture) and my buddy machined it out of 6061 aluminum
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- Scirocco
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Re: KZ650 Hydraulic Clutch
07 Aug 2018 16:54 - 07 Aug 2018 16:56
Can you duplicate this for a KZ 900/1000 sprocket cover???
I like the design and want to do a hydraulic clutch conversion on my Z1???
I like the design and want to do a hydraulic clutch conversion on my Z1???
My 1975 Z 1 B 900 Project
www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
Last edit: 07 Aug 2018 16:56 by Scirocco.
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- GrantKZ650
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Re: KZ650 Hydraulic Clutch
07 Aug 2018 18:34
I only have access to my KZ650 for design work. If I come across a Z1 I'll try to borrow it long enough to scan the motor and pull dimensions!
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- Saablord
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Re: KZ650 Hydraulic Clutch
18 Jun 2020 19:15
Hey Grant, if you're still active on here by chance, could you send me a drawing with the bolt pattern of the kz650 clutch cover? Thinking about using a zx9 slave on mine.
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- 650ed
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Re: KZ650 Hydraulic Clutch
18 Jun 2020 20:22 - 18 Jun 2020 20:22Saablord wrote: Hey Grant, if you're still active on here by chance, could you send me a drawing with the bolt pattern of the kz650 clutch cover? Thinking about using a zx9 slave on mine.
Egads - why? Since the maintenance and potential failure rate of a hydraulic clutch makes it much less desirable on a KZ650 than a cable clutch, what is the reason to switch? Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
Last edit: 18 Jun 2020 20:22 by 650ed.
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- davido
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Re: KZ650 Hydraulic Clutch
18 Jun 2020 23:39Saablord wrote: Hey Grant, if you're still active on here by chance, could you send me a drawing with the bolt pattern of the kz650 clutch cover? Thinking about using a zx9 slave on mine.
I had real problems trying to get a ZX9r set up working on my Z1000. I spent ages messing around with the spacing,moving it out and moving it in trying to find the sweet spot. Couldnt do it. The reason,I was told, was that there wasnt enough travel in the ZX9r slave cylinder. I was advised to try a Ducati unit. Dont know how true this is but In the end,I got fed up with it and went back to the original cable set up.
If you get it working,Id be very interested in how you manage it.
www.kzrider.com/forum/11-projects/594313-csr1000-project-build
CB550 (1978)
CB500/4 (1972)*
KZ1000CSR (1981)
XT 600E (1999)
TDM900 (2003)
CB550 (1978)
CB500/4 (1972)*
KZ1000CSR (1981)
XT 600E (1999)
TDM900 (2003)
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Re: KZ650 Hydraulic Clutch
18 Jun 2020 23:56Scirocco wrote: ...I like the design and want to do a hydraulic clutch conversion on my Z1???
One of these would be a lot simpler:
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- Saablord
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Re: KZ650 Hydraulic Clutch
19 Jun 2020 06:09Link doesnt work for me.
I have a heavier clutch and i wanted to give hydraulic a shot as i've never used one before.
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- GrantKZ650
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Re: KZ650 Hydraulic Clutch
19 Jun 2020 08:59
Hey Saablord, I can send you dxf or step files - let me know if you can work with those.
I haven't had any problems with the hydraulic clutch in last two years and it worked first try (but I did spend a fair bit of time reverse engineering all the components first). I'll agree it has greater potential for catastrophic failure than a cable, but I have no more cable to lube or adjust
This hydraulic unit was used by Honda for the better part of a decade, so I guess I'll trust it to work and have replacement parts. Not that any of this is reason to do the switch. I really just did it so see if I could.
I'm not sure that style actuator linked will be that simple since we don't have that nice lever arm on our bikes
I haven't had any problems with the hydraulic clutch in last two years and it worked first try (but I did spend a fair bit of time reverse engineering all the components first). I'll agree it has greater potential for catastrophic failure than a cable, but I have no more cable to lube or adjust

This hydraulic unit was used by Honda for the better part of a decade, so I guess I'll trust it to work and have replacement parts. Not that any of this is reason to do the switch. I really just did it so see if I could.
I'm not sure that style actuator linked will be that simple since we don't have that nice lever arm on our bikes
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- Saablord
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Re: KZ650 Hydraulic Clutch
19 Jun 2020 09:06 - 19 Jun 2020 09:06I use Inventor so either would work... send both? thank you! It will save me so much time.Hey Saablord, I can send you dxf or step files - let me know if you can work with those.
...Yeah that style of slave (i opened the link in a new tab... now it works) would have to be mounted to the lever on the existing clutch rod actuator... sounds complicated and ugly.I'm not sure that style actuator linked will be that simple since we don't have that nice lever arm on our bikes
hahaha. right there with you.I really just did it so see if I could.
Last edit: 19 Jun 2020 09:06 by Saablord.
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