Welcome, Guest
Username: Password: Remember me

TOPIC:

VM 28mm 29 Aug 2020 19:28 #833957

  • Zilla
  • Zilla's Avatar Topic Author
  • Offline
  • Member
  • Member
  • Posts: 141
  • Thank you received: 6
I guess so cause it don’t wanna go in. I used my digital dial and check the new vs old and there was a very slight difference so slight that I didn’t think my cheap gage was being accurate ,it’s one form harbor freight
1986 KZ1000P
2005 Vmax

Please Log in or Create an account to join the conversation.

VM 28mm 29 Aug 2020 20:17 #833959

  • Mikaw
  • Mikaw's Avatar
  • Offline
  • Sustaining Member
  • Sustaining Member
  • Posts: 1853
  • Thank you received: 423
I also am using the 28mm pumpers. I used KY-5439N kits. I didnt need the needle jets as my original were good. I just measured the ones in the kit and the OD where the fit into the carb body is 5.21 mm
1976 KZ 900 A4
1976 KZ 900 B1 LTD
1978 KZ 1000 B2 LTD
Kowledge Speaks, But Wisdom Listens.
Jimi Hendrix.

Please Log in or Create an account to join the conversation.

VM 28mm 29 Aug 2020 20:40 #833960

  • Zilla
  • Zilla's Avatar Topic Author
  • Offline
  • Member
  • Member
  • Posts: 141
  • Thank you received: 6
I just measured mine again re-zeroing my dial a couple times and the old ones are 5.16 the new are 5.20. That’s the part that goes threw the body of the carb.
1986 KZ1000P
2005 Vmax

Please Log in or Create an account to join the conversation.

VM 28mm 30 Aug 2020 05:24 #833966

  • hardrockminer
  • hardrockminer's Avatar
  • Offline
  • Sustaining Member
  • Sustaining Member
  • Posts: 1264
  • Thank you received: 393
Some photos of the carbs would be useful to identify them. Kawasaki used different internals in different years.
I have a couple of Z1B's restored, an '80 KZ1000LTD restored, a 1981 KZ550 restored and a 2008 KLR 650 for off road fun. My wife has a 2019 Suzuki DR 650 for on and off road.

Please Log in or Create an account to join the conversation.

VM 28mm 30 Aug 2020 06:11 #833973

  • Zilla
  • Zilla's Avatar Topic Author
  • Offline
  • Member
  • Member
  • Posts: 141
  • Thank you received: 6

I had re assembled them last nite , till I figure this out. Stamped on the flange by the choke lever is 120
5.
1986 KZ1000P
2005 Vmax
Attachments:

Please Log in or Create an account to join the conversation.

VM 28mm 30 Aug 2020 06:14 #833975

  • Zilla
  • Zilla's Avatar Topic Author
  • Offline
  • Member
  • Member
  • Posts: 141
  • Thank you received: 6
1986 KZ1000P
2005 Vmax
Attachments:

Please Log in or Create an account to join the conversation.

VM 28mm 30 Aug 2020 06:22 #833977

  • slmjim+Z1BEBE
  • slmjim+Z1BEBE's Avatar
  • Offline
  • Member
  • Member
  • Enjoy Life! IT HAS AN EXPIRATION DATE!
  • Posts: 765
  • Thank you received: 351
Not well versed on later years than Z1's, but the top caps look like VM26's.

What is the ID of the intake-side throats?


Good Ridin'
slmjim & Z1BEBE
A biker looks at your engine and chrome.
A Rider looks at your odometer and tags.

1973 Z1 x2
1973 Z1 "The Wounded Z" (For Sale)
1974 Z1-A x2
1975 Z1-B x2
1993 CB 750 Nighthawk x2
2009 ST1300A

www.kawasaki-z-classik.com
An enthusiast's forum focused exclusively
on all things Z1, Z2 and KZ900.

Please Log in or Create an account to join the conversation.

VM 28mm 30 Aug 2020 06:29 #833978

  • Zilla
  • Zilla's Avatar Topic Author
  • Offline
  • Member
  • Member
  • Posts: 141
  • Thank you received: 6
When I first got them I measured just a little shy of 28mm.
1986 KZ1000P
2005 Vmax

Please Log in or Create an account to join the conversation.

VM 28mm 30 Aug 2020 06:43 #833981

  • Zilla
  • Zilla's Avatar Topic Author
  • Offline
  • Member
  • Member
  • Posts: 141
  • Thank you received: 6


Took them off real quick wanted to make sure on the measurements.
1986 KZ1000P
2005 Vmax
Attachments:

Please Log in or Create an account to join the conversation.

VM 28mm 30 Aug 2020 06:51 #833983

  • DOHC
  • DOHC's Avatar
  • Offline
  • Sustaining Member
  • Sustaining Member
  • Those DOHCs really go!
  • Posts: 471
  • Thank you received: 146
I'm not certain, but I believe only the VM28 had the idle adjuster screw on the bottom side. The VM26 generally had it on the top.

I am certain that the '78 Z1R came with VM28 carbs, and that the '78 VM28 idle screw is on the bottom. But you have accelerator pump carbs, so yours would be from a '79 or '80.
'78 Z1-R in blue, '78 Z1-R in black, '78 Z1-R in pieces
'95 GPZ1100 (sold) , '00 ZRX1100
The following user(s) said Thank You: slmjim+Z1BEBE, Zilla

Please Log in or Create an account to join the conversation.

Last edit: by DOHC.

VM 28mm 30 Aug 2020 06:59 #833985

  • Zilla
  • Zilla's Avatar Topic Author
  • Offline
  • Member
  • Member
  • Posts: 141
  • Thank you received: 6
Ok, would the needle jet on those year carbs be the same or are they different for each model bike for those two years?

Or what’s the chance that the carb body is deformed a little at that spot making the new jets not fit because there round.(new)?
1986 KZ1000P
2005 Vmax

Please Log in or Create an account to join the conversation.

Last edit: by Zilla. Reason: Add statement

VM 28mm 30 Aug 2020 13:41 #834016

  • hardrockminer
  • hardrockminer's Avatar
  • Offline
  • Sustaining Member
  • Sustaining Member
  • Posts: 1264
  • Thank you received: 393
From the photos it appears that your carbs have fuel/air screws and don't have the pilot adjusters. They also have a pump on the bottom of #2 carb. I think you said your old needle jet was an O4? That would make the carbs either a '79 or '80 KZ1000 for the US market. (Canada was a bit different.) The needle used in '79 was a 5CN17 adjustable with 5 slots. In 1980 they used a 5CN29 needle with no adjusting slots. What needle is in your bike?

Edited to add that the '79 LTD used the same carbs but a larger needle jet....O6.

Edited again to add that sometimes the nets are a loose fit but sometimes they are like an interference fit. What I've done in the past for tight ones is to use a piece of wood dowel (and a small hammer) in the main jet tube to tap the needle jet into place.
I have a couple of Z1B's restored, an '80 KZ1000LTD restored, a 1981 KZ550 restored and a 2008 KLR 650 for off road fun. My wife has a 2019 Suzuki DR 650 for on and off road.

Please Log in or Create an account to join the conversation.

Last edit: by hardrockminer.
Powered by Kunena Forum