Icebound wrote:

Oh?

Yep.

Carb ice forms because the reduction of pressure in the intake, causes the
air to cool below freezing, and if moist enough, the moisture condenses and
freezes onto the butterfly.

The evaporation of fuel in the carb throat also accounts for about 20 degrees of
the temperature drop. The carb will warm up when you cut of the gas.

George Patterson
Give a person a fish and you feed him for a day; teach a person to
use the Internet and he won't bother you for weeks.