Model straight out the box, manufacture set to start up. High idle, 1.75 air gap throttle opening, 3.5-4 turns on the HSN, LSN about flush.
Question? when it stalls, you prime the engine up, you see fuel in the fuel line, it stalls, does the fuel line has a big air bubble? You got to tune it up.
Start by turning down the idle speed. Your airgap would b e close to 1mm. Then, turn HSN 1/4 turn to the right, Then throttle up. Does it still stall. Rstart and do it again. Do it until it keep running. When you get runnings let it sit there idling for a minute then throttle it up, or bump the throttle. let it idle another minute. Give it a couple laps, the start adjusting your LSN. Turn LSN CW, adjust to idle speed starts to rise, you're close now.
New nitro guy get excited when the car starts, When then car starts they put on the ground and hope it starts moving. Doesn't work that way. Getting it started, Tuning it up, and break-in time. Patience is all it takes.
Good Luck and have fun.