Are you having any high rpm surging at all ?

chk fuel vents chk your air mixture screws,mine had the middle one ,not the same as the bottom and top from the factory

ran okay first couple times out when new ,but started to stall the same as yours.adjusted runs fine now.

fuel pump could be starting to act up

also carbs could be dirty or gummy

what do the plugs look like? all the same or one different?


Rich