Just because you bought a new carb, does not mean it has not been sitting on the shelf for a few years. No squirting would be an indentation to me the accelerator pump has dried out and needs to be replaced. The old leather pumps work better than the rubber ones of today. Using just ethanol fuel of today can be another issue. You can fine Un ethanol 93 fuel at some stations still. At least where I live. It does cost more.