[vyquad]

Cant find it in the parts diagram so what is it for?

 

[SoakedKarma]

If i'm correct it's shown in all generation parts diagrams..
marked as #1 which includes all rubber o-ring gaskets

appears to be o-ring that seals AF screw, metal washer keeps spring from digging into o-ring.
what it's doing in float bowl is good question.

 

[vyquad]

If i'm correct it's shown in all generation parts diagrams..
marked as #1 which includes all rubber o-ring gaskets

appears to be o-ring that seals AF screw, metal washer keeps spring from digging into o-ring.
what it's doing in float bowl is good question.
View attachment 115698

Um, i never removed the AF screw

 

[Emil]

The O-ring looks too small to be the one on the float bowl???
It sounded like SoakedKarma was correct.
This is all that normally comes with a rebuild kit.
The aforementioned one is what matches. Unless someone errantly put one on the float valve.

 

[vyquad]

So would it be possible that the washer isnt part of the carb at all and i just found it in the bowl?

 

[Emil]

If you look at the picture above for the float Bowl gasket, you'll see one has an O-ring attached to the gasket.
Some carburetors have that O-ring separate, and some have them a fixed as shown in that particular unit.
If yours has the O-ring still attached to the Bowl, it seems like somebody left that part inside the bowl & it shouldn't be there.

 

[redeemer1972]

So would it be possible that the washer isnt part of the carb at all and i just found it in the bowl?

It is part of the carb for sure. Or at least, it was.

It indeed is the O-ring for the A/F screw. These O-rings change shape while in place. One side turns tapered, just as the one you are showing here.