Carb ID numbers

[solshep]

Anyone recognise what these carbs are off? They are Mikuni VM26mm carbs, measure 26.5mm inner diameters.
Numbers under the choke lever are 450 60 and opposite side is R9 11
See the attached pictures, just wondering what they came off.

[Skid Mark]

I'd guess a Z650, they look like very similar to ones on a B2 I cleaned up and put on a self to gather dust.

[warren3200gt]

If the throat on the engine side measures 26mm then they are VM 24's as the throat to the slide bore tapers.
VM 26's measure closer to 28 mm on the engine side.

[solshep]

They are vm26 carbs, they measure 26.5mm inner diameter, roughly the same as another set of carbs i have from a z1000a2 102 5A which are vm26ss according to airevallyclassics list. I am not worried about the size of them, just wonder what they are from. A mate of mine suggested they might be suzuki.

[zed1015]

A mate of mine suggested they might be suzuki.

If they are Suzuki they will have BOTH air and fuel screws present.
If Kawasaki they will only have one or the other.

[kev edwards]

Pictures of underneath front, sides of carbs and top rear will help us identify these far quicker.

[solshep]

Ok here are some more pic.

[kev edwards]

26 mm, under the front is there a threaded screw hole if so they would be gs 750 carbs, they are a little messy.

[solshep]

Yes they have both screws, well at least they have the holes for them.

[solshep]

So, are we all agreed that these are suzuki VM26SS carbs.
And now, does anyone know exactly what model of Suzuki from the id numbers.

[kev edwards]

Gs 750 late 70's.

[z2.john]

Gs 750 late 70's.

I would tend to agree. The date code on them is Sept 1976 so would have to be a very early GS model (assuming they are Suzuki)

[solshep]

Gs 750 late 70's.

I would tend to agree. The date code on them is Sept 1976, so would have to be a very early GS model (assuming they are Suzuki)

Any explanation of "date code"? I am looking for the information on the identifying marks, I assume one of them is a date code then. So where can I find a list of these date codes, etc. These are not the only carbs I have, and it would be handy to know what I am looking at instead of relying on posting pics here and waiting for snippets of information.
So what brought you to state that they are September 1976?
Is there somewhere i can get this information for myself?
Any help would be much appreciated.
Thanks to everyone for the help.so far.

[Garry.L]

https://www.scribd.com/document/5233563 ... g-Database

[z2.john]

There are date codes on loads of Zed parts.
Mikuni items are shown at bottom of this excerpt.