Yes, that's the part I thought you were talking about... Page E14-1 #37, part number 16180-KV3-770.

You may find the best way to source that part now is to buy a used set of carbs. DO NOT run without it, or without fixing it. There is probably no reason why it cannot be glued back together. I would personally carefully glue it back together with superglue, and then key it up with a little rough sandpaper, and strengthen the repair with a little 2-part epoxy.

You could make a new X-piece, but the little jet in the X-piece is shaped (possibly for flow), and simply drilling a piece of brass the same size and pressing it into a non OEM X-piece may not have the desired results.
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Andy.
NSR-WORLD.COM

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