The intake is almost done. I found a few pipes that fit together to shim the tube to fit the OKO 21. The I.d. is 21 then there's the lip that grips the rubber splicer. I cut a 1 or 2mm slice then welded the edge of the tube. It holds on good!, the carb has a shallow groove that holds the other side.
Nice and tight to the case.
The gas pisser is right there aimed at the fuel inlet too.