Spacing on Mikuni RS-36

  • richard-GPZ
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Spacing on Mikuni RS-36

21 Mar 2020 17:23
#821351
Been having trouble mounting a set of Mikuni RS36-D3 K on my 1983 GPZ-1100.
I measured the spacing of the intake manifolds on my GPZ and got 75-96-75.
The spacing on the Mikuni's are 77-93-77.
Has anyone got a fix so the carbs will fit better?
Thanks for any help you can give.
1983 GPZ-1100 completely stock

1983 Gpz-1100 hot rod build in process

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  • TexasKZ
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Re: Spacing on Mikuni RS-36

21 Mar 2020 18:13
#821354
Looks like the carb spacing should be 73-93-73

www.partzilla.com/product/aftermarket/1812-MIKUNI-RS36-D3-K
1982 KZ1000 LTD parts donor
1981 KZ1000 LTD awaiting resurrection
2000 ZRX1100 not ridden enough

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  • richard-GPZ
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Re: Spacing on Mikuni RS-36

21 Mar 2020 21:34
#821374
Hope these pictures help to show the spacing problem I am having.
1983 GPZ-1100 completely stock

1983 Gpz-1100 hot rod build in process

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  • Scirocco
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Re: Spacing on Mikuni RS-36

22 Mar 2020 04:42
#821385
The spacing is 77-93-77 and you have to use intake rubber boot with 42 mm ID to fit the RS36-D3-K carb set.

www.mikuni-topham.de/ENGLISHSITE/ENGLISH/Frame_English.html

My 1975 Z 1 B 900 Project

www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode

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  • richard-GPZ
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Re: Spacing on Mikuni RS-36

22 Mar 2020 07:29
#821394
Yes the spacing on the Mikuni carbs are 77-93-77 but the intake spacing on the head is 75-96-75.
1983 GPZ-1100 completely stock

1983 Gpz-1100 hot rod build in process

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  • Scirocco
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Re: Spacing on Mikuni RS-36

22 Mar 2020 14:55 - 22 Mar 2020 15:00
#821437
Did you do double check the spacing on your injector throttle body?
Give me some time to do some meassurments tomorrow on my spare GPZ1100 UT head and throttle body for the spacing values.
My 1975 Z 1 B 900 Project

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Last edit: 22 Mar 2020 15:00 by Scirocco.

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  • richard-GPZ
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Re: Spacing on Mikuni RS-36

22 Mar 2020 15:15
#821444
Thanks you for checking.
Unfortunately I sold my throttle body
1983 GPZ-1100 completely stock

1983 Gpz-1100 hot rod build in process

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Re: Spacing on Mikuni RS-36

22 Mar 2020 16:19
#821449
Still Have the air box for the throttle body and it checks 75-96-75
1983 GPZ-1100 completely stock

1983 Gpz-1100 hot rod build in process

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  • Dr. Gamma
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Re: Spacing on Mikuni RS-36

22 Mar 2020 16:25
#821450
I don't have the time to go checking my notes and parts books.
But I believe you need to use 16065-1135 intake ducts on the Zx1100 head to mount up the RS36 Flatslides.
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Re: Spacing on Mikuni RS-36

22 Mar 2020 16:43
#821452
I believe I have the right intake ducts I will have to check them.
But even with the right intake ducts the spacing I measured shows the carbs still don't match up by 2 to 3 mm.
Is that ok to have them off by that amount?
1983 GPZ-1100 completely stock

1983 Gpz-1100 hot rod build in process

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Re: Spacing on Mikuni RS-36

23 Mar 2020 13:52
#821527
I checked my intake ducts and they are 40mm.
Will look into changing them out with 42mm ones.
Still worried about the carb spacing not being the same as the head.
1983 GPZ-1100 completely stock

1983 Gpz-1100 hot rod build in process

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