Dear Roverists. I have a question regarding the automatic choke device (AED). Since my P5B starts perfectly with the manual choke I want to get rid of the unit completely. The line that connects to the centre between the 2 carbs has been removed and plugged on the carb side. Now there is another (flexible) pipe, that runs to the lefthandside of the engine and then down between 2 pipes of the exhaust-manifold. (see picture). What is the use of this pipe and can i simply remove it? Has it something to do with carterventilation?