Hello, I had recently informed myself here in the chat about the conversion from 1.6l to 1.8l at MX5 NBFL. Now I had found and bought a motor last weekend, which I started on the weekend (but went with a lot of sweat and curse), because I had dug it alone in the garage. I installed the 1.8l-140hp motor with the control unit and the motor cable tree. Filled in the oil filter and oil or new coolant. the 1 hose is about 17cm long and hangs under the manifold on the left side, the 2 hose (60cm long) comes from the petrol vacuum valve and the 3 hose (60cm long) is closed under the manifold on the right side before the petrol inlet connection (below half the vacuum valve). 1. Question: Do the vacuum hoses have to be connected? (You can see it in the following pictures.) 2. Question: Do the hoses play a role in the Starting the engine? 3. Question: Or do I need other parts for normal running or starting the engine? At the moment the MX is standing in the garage and does not want to start, if you could be helpful to me, I would be very grateful to you. Gruss, shg964