So far in testing mine is working ok. It is a Zama carb with a 10mm venturi. I added a spring to the fuel pump and used an external pulse line tapped into the intake manifold. (No problems with oil in the pulse line that way.) I was considering trying that WYK-16 carb that BCMA engines sells however just to see if it worked any better, so it would be great to see this cleared up as to whether it has both adjustments or not...

Good luck,
AV8TOR