[jmeckel]

MOT and Tom are right heat the casting to a very dull red color, I have found that a Oxy/acte torch with a rose bud tip works the best. Be very careful when you dunk it in water as you can get splash / or steam burned, I wear a welding glove on the hand that I use to dunk the carb with (I hold onto the carb with a pliers).

I repair many carbs a year and have never had one that I needed to use a easy-out on. Heat and a bucket of cold water is your friend when working on these carbs.