I am having some problems tuning my Zenoah 26. When I advance the throttle from halve position to full it tends to stall. I already cleaned it up and tried to adjust the high and low needles.

The G-26 came from the factory with the Walbro WT-645 (12.70mm ventury).

I would like to know if a WT-338 Walbro Carb (13.49mm ventury) that I removed from a Zenoah G-38 would work fine on the G-26.

Thanks.