KOSO carb - looking for a part

[Ascot500]

So the idle mixture screw backed and is lost.
Where can I find a replacement (for a reasonable cost)?

[Megadan]

So the idle mixture screw backed and is lost.
Where can I find a replacement (for a reasonable cost)?

PWK Clone?
https://www.ebay.com/itm/2-NEW-air-mixture-screw-set-PWK-Keihin-carb-30mm-26mm-32mm-Triumph-Norton-BSA-/362683403174?_trksid=p2349526.m4383.l4275.c10#viTa bs_0

Or if you want or need a thumb screw.
https://www.ebay.com/p/24013212359?iid=383063644205&chn=ps&norover=1&mkevt=1&mkrid=711-117182-37290-0&mkcid=2&itemid=383063644205&targetid=885291054415&device=c&mktype=pla&googleloc=9024580&poi=&campaignid=9426387774&mkgroupid=92958141302&rlsatarget=pla-885291054415&abcId=1140476&merchantid=6338914&gclid=Cj0KCQjwnv71BRCOARIsAIkxW9F4LyEOQ_2wbKt5c6GW ZHKVqgyED35Gv3HIU4w2SMbMR-EiyUyPjdUaAsJrEALw_wcB

[Ascot500]

It looks like this.
Does that make it a PWK clone?

[Megadan]

Yep, that is a PWK carb clone. The KOSO and a few others are all based on that design so either of the above options should work.

[Ascot500]

Thanks, Megadan