You have pilot screws, which are for fuel. If you blow through them to the float bowls, then you're confirming they are fuel. The vacuum through the venturi draws fuel through the jet directly from your bowl.
These carbs are very picky when it comes to air flow. All of your air hoses need to be hooked up. All of your rubber needs to be in good working order.
These carbs are very picky when it comes to air flow. All of your air hoses need to be hooked up. All of your rubber needs to be in good working order.