Good story, OP.
Experience is a harsh teacher: Long ago I soaked a 2-cycle aluminum carb in a gallon can of carburetor cleaner over night. The next day I hosed it off only to see that the carb cleaner had SERIOUSLY eroded the little aluminum carb. It was not repairable.
I checked and the carb cleaner had a pH of about 10 which means that it is a strong base---comparable to lye and drain cleaner.