Carb draining

If you really think the bowls are low after two days. Verify it. Take the top off and look
Look down carb and have someone pump the gas pedal

No shot from the accelerator pump dry bowl, shots not dry bowl.

We have all gotten so spoiled with instant on fuel injection.

If you really have dry bowels then the carb might be cracked, check for fuel smell in your oil.

Could be evaporation but I think that is an overused thought