O-ring size for main jet holder on Mikuni VM 26 ( Z1000 A1 / A2 )
- MFP-Joe
-
Topic Author
- Offline
- User
-
Registered
- forever 18 when on my bike
- Posts: 351
- Thanks: 409
O-ring size for main jet holder on Mikuni VM 26 ( Z1000 A1 / A2 )
30 Aug 2025 10:46
What size have the original O-ring for the main jet holder on these Mikuni VM 26?
I will change them now all on my carbs, it would be nice to know the size, thank you!
I will change them now all on my carbs, it would be nice to know the size, thank you!
Greetings, Joe
Please Log in or Create an account to join the conversation.
- Nessism
-
- Away
- Sustaining Member
-
Registered
- Posts: 7876
- Thanks: 3250
Re: O-ring size for main jet holder on Mikuni VM 26 ( Z1000 A1 / A2 )
30 Aug 2025 11:11
Ed
Carb O-ring Kits : www.kzrider.com/forum/3-carburetor/61807...-o-ring-kits?start=0
www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know
1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread
Carb O-ring Kits : www.kzrider.com/forum/3-carburetor/61807...-o-ring-kits?start=0
www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know
1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread
The following user(s) said Thank You: asphalt900, MFP-Joe, Gdizard
Please Log in or Create an account to join the conversation.
- Gdizard
-
- Offline
- User
-
Registered
- 12/03/1954
- Posts: 130
- Thanks: 21
Re: O-ring size for main jet holder on Mikuni VM 26 ( Z1000 A1 / A2 )
30 Aug 2025 12:19
If possible can someone post a photo of the main jet holder?
Thank you for reading this
Thank you for reading this
The following user(s) said Thank You: asphalt900
Please Log in or Create an account to join the conversation.
- asphalt900
-
- Offline
- User
-
Registered
- Posts: 1375
- Thanks: 870
Re: O-ring size for main jet holder on Mikuni VM 26 ( Z1000 A1 / A2 )
30 Aug 2025 13:12
Here's a photo, hope it helps Gd. While they all look similar, they have different air bleed hole count/location depending on application. What are You fishing for?
The following user(s) said Thank You: MFP-Joe
Please Log in or Create an account to join the conversation.
- Gdizard
-
- Offline
- User
-
Registered
- 12/03/1954
- Posts: 130
- Thanks: 21
Re: O-ring size for main jet holder on Mikuni VM 26 ( Z1000 A1 / A2 )
30 Aug 2025 13:42
I am trying to make a list of these items for a vm26 fuel mixture screw carb set for a 1000 1977 kz1000, I want to get new mixture screws and o rings and the keyster set that includes the float valve and seat. I have a motor that is 1075 wiseco pistons with a stock camshaft. I am not really sure what size of parts to put in it. I am running at sea level. Can you suggest what size of brass parts to use?
Please Log in or Create an account to join the conversation.
- Gdizard
-
- Offline
- User
-
Registered
- 12/03/1954
- Posts: 130
- Thanks: 21
Re: O-ring size for main jet holder on Mikuni VM 26 ( Z1000 A1 / A2 )
30 Aug 2025 13:48
Now I have a 92.5 main jet and a 15 pilot jet
Please Log in or Create an account to join the conversation.
- Gdizard
-
- Offline
- User
-
Registered
- 12/03/1954
- Posts: 130
- Thanks: 21
Re: O-ring size for main jet holder on Mikuni VM 26 ( Z1000 A1 / A2 )
30 Aug 2025 14:09
My jet needle is 5CN8 and the clip is on the second groove from the top
Please Log in or Create an account to join the conversation.
- MFP-Joe
-
Topic Author
- Offline
- User
-
Registered
- forever 18 when on my bike
- Posts: 351
- Thanks: 409
Re: O-ring size for main jet holder on Mikuni VM 26 ( Z1000 A1 / A2 )
30 Aug 2025 23:10I use -009.
Thank you, Ed, for the explicid info in inch and metric sizes !!!
Greetings, Joe
Please Log in or Create an account to join the conversation.
- asphalt900
-
- Offline
- User
-
Registered
- Posts: 1375
- Thanks: 870
Re: O-ring size for main jet holder on Mikuni VM 26 ( Z1000 A1 / A2 )
31 Aug 2025 01:04
GD are you sure you have the Kawasaki VM's. Those main and pilot sizes are what the Suzuki GS1000 8-valve used, not Kawasaki. Do you have Air and Fuel adjusters? Can't remember but think they also used/shared the same 5CN8 jet needle. Jetting, what exhaust and airbox/individual filters will dictate. Verify they are truly the VM26 Kawasaki version please, check numbers on flange and share please! And i wouldn't recommend changing out those fuel adjust screws unless damaged or pitted.
The following user(s) said Thank You: Gdizard
Please Log in or Create an account to join the conversation.
- Gdizard
-
- Offline
- User
-
Registered
- 12/03/1954
- Posts: 130
- Thanks: 21
Re: O-ring size for main jet holder on Mikuni VM 26 ( Z1000 A1 / A2 )
31 Aug 2025 08:09
R6.8 is in front of choke plunger and 299 01 is stamped on the opposite side
Please Log in or Create an account to join the conversation.
- Gdizard
-
- Offline
- User
-
Registered
- 12/03/1954
- Posts: 130
- Thanks: 21
Re: O-ring size for main jet holder on Mikuni VM 26 ( Z1000 A1 / A2 )
31 Aug 2025 08:11 - 31 Aug 2025 08:12
Last edit: 31 Aug 2025 08:12 by Gdizard.
Please Log in or Create an account to join the conversation.
- gd4now
-
- Offline
- User
-
Registered
- Denco where did you go?
- Posts: 1593
- Thanks: 617
Re: O-ring size for main jet holder on Mikuni VM 26 ( Z1000 A1 / A2 )
31 Aug 2025 08:30
I have some info that the 299/01 ID were used stock on the 77 1000 A models. Your current main and pilot jet sizes are smaller than info I have for stock settings. Info I can find is as follows
main jet 107.5
pilot jet 17.5
jet needle 5CN8 set to 3rd slot from top
needle jet O-6 (thats an oh not a zero)
slide cutaway 1.5
pilot screw (fuel) 1 1/4 + or- 1/4
main jet 107.5
pilot jet 17.5
jet needle 5CN8 set to 3rd slot from top
needle jet O-6 (thats an oh not a zero)
slide cutaway 1.5
pilot screw (fuel) 1 1/4 + or- 1/4
1977 KZ650 B1
Pods and Denco header
OLD KAW OWNERS SMILE ALOT
Pods and Denco header
OLD KAW OWNERS SMILE ALOT
The following user(s) said Thank You: Gdizard
Please Log in or Create an account to join the conversation.
Moderators: Street Fighter LTD