Difference in performance/use RS Flat Slide vs CR Round Slide - wrist fatigue

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10 Aug 2022 14:47 #872003 by 577nitro

The S1 came with the bath tub design cylinder head. It was the first Kz that used the bath tub cylinder head. Kawasaki then used the design head on the '83/'84 ZX1100's (GPz1100).

What throttle tube did you get with the Yoshimura throttle???

 

Mine came with the one on the left.

Nada...did not come with throttle.   However, I did find this slick throttle tube from motoworks that uses bearings and does not ride on the bar at all and comes with all different size cable cams.

The search goes on...I did find some OEM throttle cables for my 81 GPZ550, thats about to be assemble after far too long.   Still looking for OEM speedo, and clutch for that. 
Plenty of Z900, Z1000 cables from japan.  I might try those if the Z1R are un-attaineum.

577nitro


 

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10 Aug 2022 18:36 #872016 by daveo

Ran into that difficulty in 2016 while searching for cables for a ZN1100 dual-cable control housing which I chose to use with my RS carbs.  
Nothing was (and nothing yet is) available for that setup...only option was to custom build them.

I'm still dumbfounded by how well they work. 

What cables did you use?  Is there some sort stock that can be used to fabricate the cables??

577nitro-
If this was my situation, I would grab a couple 294673105517 and 140594394356...then cut to lengths and swap cables and fittings as needed.  
Only thing left is fabricate and secure knarps on the cut cable ends to fit the throttle grip. 


1982 KZ1100-A2

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  • slayer61
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11 Aug 2022 07:45 #872049 by slayer61

The S1 came with the bath tub design cylinder head. It was the first Kz that used the bath tub cylinder head. Kawasaki then used the design head on the '83/'84 ZX1100's (GPz1100).

What throttle tube did you get with the Yoshimura throttle???

 

Mine came with the one on the left.

Nada...did not come with throttle.   However, I did find this slick throttle tube from motoworks that uses bearings and does not ride on the bar at all and comes with all different size cable cams.

The search goes on...I did find some OEM throttle cables for my 81 GPZ550, thats about to be assemble after far too long.   Still looking for OEM speedo, and clutch for that. 
Plenty of Z900, Z1000 cables from japan.  I might try those if the Z1R are un-attaineum.

577nitro



 
Is this the one you're talking about?
www.motosport.com/works-connection-elite-throttle-tube



That looks like a perfect candidate for my Mrs' bike.

Don't be ridiculous! It's only a flesh wound!

[strike]Wife's little bike... 1984 GPZ 550 Kerker and DynaJet stage I kit[/strike]
Wife's BIG bike......[strike] 1981 GPZ 1100 Kerker and [strike]factory FI[/strike] Mikuni RS34s W/ K&N pods[/strike] SOLD

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  • DoctoRot
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11 Aug 2022 14:07 #872070 by DoctoRot
If you're looking to make the pull easier all you really need to do is sand down the throttle pulley diameter a bit. wont cost you anything but some time. 

I am going to try this variable rate throttle on my next build

www.revzilla.com/motorcycle/motion-pro-r...D_BwE&sku_id=1002155

 

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11 Aug 2022 15:53 #872082 by 577nitro

The S1 came with the bath tub design cylinder head. It was the first Kz that used the bath tub cylinder head. Kawasaki then used the design head on the '83/'84 ZX1100's (GPz1100).

What throttle tube did you get with the Yoshimura throttle???

 

Mine came with the one on the left.

Nada...did not come with throttle.   However, I did find this slick throttle tube from motoworks that uses bearings and does not ride on the bar at all and comes with all different size cable cams.

The search goes on...I did find some OEM throttle cables for my 81 GPZ550, thats about to be assemble after far too long.   Still looking for OEM speedo, and clutch for that. 
Plenty of Z900, Z1000 cables from japan.  I might try those if the Z1R are un-attaineum.

577nitro




 
Is this the one you're talking about?
www.motosport.com/works-connection-elite-throttle-tube



That looks like a perfect candidate for my Mrs' bike.
Yup, thats it.   If it does't work I'll put it on the ZRX or the KDX200.

577Nitro

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11 Aug 2022 16:39 #872088 by 577nitro
My EE buddy is getting pretty excited about this project, we've decided to go with a new design altogether and scrap the crashed bike setup.   We've found some commercially available stepping motors and controllers that we can program.  That will let us have the ability to have "modes" like the fancy bikes.  Might be able to integrate into a OBC and TFT touch screen I've been working on for a while using a raspberryPi 4.  Need to figure out the throttle though.  Or...it can all crash and burn too... :)

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11 Aug 2022 23:01 #872093 by Wookie58

My EE buddy is getting pretty excited about this project, we've decided to go with a new design altogether and scrap the crashed bike setup.   We've found some commercially available stepping motors and controllers that we can program.  That will let us have the ability to have "modes" like the fancy bikes.  Might be able to integrate into a OBC and TFT touch screen I've been working on for a while using a raspberryPi 4.  Need to figure out the throttle though.  Or...it can all crash and burn too... :)
If you have the electronic's skills to custom build such a system and the time to spend on R&D "why not"   I would however suggest a couple of things
  • Activate the system through your kill switch
  • Design it with a system voltage around 11v (bleed off the excess through a "zenner" type set up) this will prevent surging on a constant throttle due to system voltage fluctuations
Good luck
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13 Aug 2022 15:25 - 13 Aug 2022 15:27 #872174 by 577nitro

My EE buddy is getting pretty excited about this project, we've decided to go with a new design altogether and scrap the crashed bike setup.   We've found some commercially available stepping motors and controllers that we can program.  That will let us have the ability to have "modes" like the fancy bikes.  Might be able to integrate into a OBC and TFT touch screen I've been working on for a while using a raspberryPi 4.  Need to figure out the throttle though.  Or...it can all crash and burn too... :)
If you have the electronic's skills to custom build such a system and the time to spend on R&D "why not"   I would however suggest a couple of things
  • Activate the system through your kill switch
  • Design it with a system voltage around 11v (bleed off the excess through a "zenner" type set up) this will prevent surging on a constant throttle due to system voltage fluctuations
Good luck

All good info to take in...so many cool things that can be added once we reach being able to control the throttle.  I program embedded systems with IMU's and published a few mobile device apps, so that part's going to pretty easy to do.   I've been fooling around with a fully integrated bolt on instrument system with GPIO interfaces..however I really never thought of adding throttle or engine manage to it until now.   BUT...with throttle control...coupled with IMU's,  there's a real possibility of at least a basic level of rider aids. 
Last edit: 13 Aug 2022 15:27 by 577nitro. Reason: spelling
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26 Aug 2022 16:28 #872915 by 577nitro
Update:

I received a 12-1019 and 12-1018 (the 78-80 Z1R OEM cables) as well as a German Made 12-1019 exact copy.   I installed them on my Yoshi throttle holder, lubed them the best I could and what a difference.  Night and day, and I shit you not.   At least a 30% reduction in force required.  So much smoother, I was able to back down the spring tension on the carbs because it no longer needed to fight that friction.  The German made one was on par with the OEM.  And it was  bitch to find the OEM's.   I need to adapt the Works Connection throttle tube to fit the ISD of the bars, so I'm guessing it will even get better when that is done.   

I'll give a ride report on this setup when I get a chance.   I'm still working the fly-by wire as well. 

577Nitro-  
 

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26 Jul 2024 15:18 #902578 by mikeyt62
Hey slayer, did you get the throttle setup to work? If so what throttle tube and cables did you go with? Im trying to get my setup on my kz1000r with KEIHIN CR's

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26 Jul 2024 15:24 #902579 by mikeyt62
Hey Dr.Gamma, I noticed this thread as Im trying to set up my 83kz1000r with Keihin 33mm and need to get the throttle setup. I just bought the YOSH push pull throttle on EBAY. Now I need to figure cables. I see your recommendation getting the throttle cables. What about the throttle tube? Where do I get that from? 
Thanks for any help

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12 Aug 2024 13:23 #903163 by Dr. Gamma

Hey Dr.Gamma, I noticed this thread as Im trying to set up my 83kz1000r with Keihin 33mm and need to get the throttle setup. I just bought the YOSH push pull throttle on EBAY. Now I need to figure cables. I see your recommendation getting the throttle cables. What about the throttle tube? Where do I get that from? 
Thanks for any help
 
 Just saw your post. WOW everything is different looking here now!!!!!

Try using a 1978~1979 GS1000 inner sleeve part number 57110-34601. I used that one on my Yosh throttle. If you can find one the RG500 inner sleeve works too and it is quicker than the Gs1000 one!!!
 

1972 H2 750 Cafe Racer built in 1974.
1976 KH400 Production Road Racer.
1979 Kz1000 MK. II Old AMA/WERA Superbike.
1986 RG500G 2 stroke terror.
1986 GSXR750RG The one with the clutch that rattles!

Up in the hills near Prescott, Az.

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