Attempt Start with Starting Fluid

What happens here

After installing the new battery, the presenter pours a shot of Polar Premium Starting Fluid directly into the carburetor area via the air filter intake. He then pulls the starter cable repeatedly to engage the starter. Despite multiple attempts, the engine cranks but does not catch and start. He notes that the engine is turning over and he can smell and see fuel, but it's not firing.

Goal: Start the tractor engine