ctbale wrote:
no o ring on that part, thats called the "jet needle". The emulsion tube has iti-biti holes on the sides, maybe 6 or 8 little holes.


http://www.westernhillsho...ONDA&year=1966&fveh=3385


I think the emulsion tube and your piece, the jet needle, was all one piece from K1 on. I think .....
I thought that piece was the emulsion tube because it was the only piece I could knock out. It's part #11 on the diagram. So...part #12 (holder,needle jet) should have an o-ring? I'll check it out. There is no groove for one on the piece and that diagram doesn't show one, but the tube doesn't screw down tightly against the carb.

Thanks,
Eric