Spacing on Mikuni RS-36

Spacing on Mikuni RS-36 21 Mar 2020 17:23 #821351

richard-GPZ Topic Author Offline User Posts: 39 Thank you received: 9	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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Spacing on Mikuni RS-36 21 Mar 2020 18:13 #821354

TexasKZ Offline Platinum Member Posts: 7192 Thank you received: 2050	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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Spacing on Mikuni RS-36 21 Mar 2020 21:34 #821374

richard-GPZ Topic Author Offline User Posts: 39 Thank you received: 9	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 Attachments:
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Spacing on Mikuni RS-36 22 Mar 2020 04:42 #821385

Scirocco Offline Premium Member Never change a running system Posts: 3921 Thank you received: 1892	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 Attachments:
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Spacing on Mikuni RS-36 22 Mar 2020 07:29 #821394

richard-GPZ Topic Author Offline User Posts: 39 Thank you received: 9	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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Spacing on Mikuni RS-36 22 Mar 2020 14:55 #821437

Scirocco Offline Premium Member Never change a running system Posts: 3921 Thank you received: 1892	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 www.kzrider.com/forum/11-projects/605133...ears-deep-sleep-mode
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Spacing on Mikuni RS-36 22 Mar 2020 15:15 #821444

richard-GPZ Topic Author Offline User Posts: 39 Thank you received: 9	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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Spacing on Mikuni RS-36 22 Mar 2020 16:19 #821449

richard-GPZ Topic Author Offline User Posts: 39 Thank you received: 9	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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Spacing on Mikuni RS-36 22 Mar 2020 16:25 #821450

Dr. Gamma
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Sustaining Member
Posts: 1221
Thank you received: 664

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.

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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Spacing on Mikuni RS-36 22 Mar 2020 16:43 #821452

richard-GPZ Topic Author Offline User Posts: 39 Thank you received: 9	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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Spacing on Mikuni RS-36 23 Mar 2020 13:52 #821527

richard-GPZ Topic Author Offline User Posts: 39 Thank you received: 9	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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