Crazy that you mention that. I used to sell (years ago) a compressed air powered tool that would produce heat out of one side and cold out of the other just for checking chokes.
While making adjustments last night. I'd bend the little rod on the choke thermostat in tiny increments at a time. Every time I'd make an adjustment, I'd pull the choke thermostat off the car and pop it in the freezer for 5 minutes so that it would reset itself then put it back on the car. I thought that would save me some time so as not to have to wait until it the spring cooled down and retracted on its own.
