Kerry, I would just fill your carb with diesel or another light oil for storage. The thinner does not remove any metal so is not too agressive. But the curse of the white corrosion in the die cast passages is too great to risk. On the very small carbs I have lost several because of it. It was in places I could not get to internally in the castings. Just run your carb out of fuel and fill it through the throat tube. Only takes a few minutes. My other approach is for guys like me that think the car is only going to be out of service for a short time and it becomes years. Or for an aquired car that has sat a long time.