Quote Originally Posted by Bob
Sorry to come back to this, but I knew there was something bugging me in the back of my mind... such as it is.

You say "Carb cleaner destroys rubber". Don't carbs contain O-Rings, which are made of... rubber? So carb cleaner would destroy the very rubber components inside the carb that is needs to function, would it not?

Or am I missing something here?
Different sort of rubber maybe ? O rings are (usually there are many sorts) made of nitrile, which is (obviously) resisitant to oil/petrol etc. Rubber is rotted by oil, nitrile is not.