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I'm stumped. Walbro WA59 Carb missing part?

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Hi guys,

I have a Walbro 59 (stamped in the carburetor), I'm putting it back together from pictures. I have a picture, not the greatest, despite being large, but it shows what appears to be some sort of 'plug' or 'cover' over one of the ports. I can't recall removing it, nor can I find it among all the parts in the container. So I'm not sure if it's gone walkabout or is something else altogether (screen maybe).

Originally I purchased this gasket kit but found it was not 100% correct. Iirc it had a couple of gaskets/diaphragms I needed but was also missing a couple. I then ordered this kit which seemed to be correct. Unfortunately neither kits have anything that will fit in that spot. The diameter appears to be 4mm.

Looking at an online diagram (not sure what the '-1' means after WA59), it shows a possible something (#23 in the diagram) but there's no link to it, so that something is unknown.
smirk


Probably serves me right for not taking better pictures, I'll have to start making a documentary every time I take something apart
smirk
.

Anyone happen to have this carburetor or know what I'm looking at?

Also, I noticed the metal 'plate assembly' (see attached pic) has a hole in the top-left corner, but the diaphragm and gasket doesn't. Why would this be? Wouldn't it just be blocked by the gasket? or likely the same part is used in a different model carb where it serves a function?

Appreciate any feedback on this dilemma
smile

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