I seem to be missing the o ring for my air fuel idle mixture screw not sure where it fits on the screw or where I can order just the o-ring if it indeed requires one the mikuni website shows one but not exactly where it goes

After further research on my carburetor I do not see a o-ring for the air fuel mixture screw or the idle screw is that correct



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Only you know what you're working on...  there might be ten thousand variations of a Mikuni VM32.  Is this an original Yamaha carb?  If so, you might be able to find what you need in the original parts diagrams found online at Yamaha or thousands of Yamaha part sellers.

If it's for an RT3, then no.  No o-ring.

Thanks guys no o rings runs like a champ idles and starts first kick