As you say it seems fuel isn't getting to the engine.

Check the klunk is attached to the line that goes to the carb.

Try blowing into the line that goes from the muffler nipple to the tank (vent) and fuel should flow thorugh the other line to the engine.

Try putting a finger over the muffler outlet and turning the engine over (without the glo plug energized). Fuel should move through the line to the engine.

If fuel isn't getting there it definitely won't start, so look for why. Everything should be connected.

Check the glo plug out of the engine with the energizer connected and see if it glows. Try a second glo plug.

Fully close the needle and open it 2.5 - 3 turns.

If the glo is OK and fuel is getting through, energize the glo and hit it with the electric starter. It will run if all is OK.

Tune it as per the manual.

If it still doesn't run, then there may be a more complex problem with the engine, but these are simple engines, and fuel and glo should make it run.

Do you know an experienced modeler nearby on whom you could call for assistance?

I have had one of these engines for a few years and it's very reliable.