Aprilia Leonardo 125 – no petrol in the reservoir

Servus Roller colleagues, I bought a Leo 125 from 1998. The scooter does not get any gasoline pumped from the main tank into the small reservoir. I tested that once if I fill the reservoir manually if the scooter runs. Yes, the scooter runs. Then I screwed away the lid from the tank once and all the pipes in the tank were porous and torn. I renewed the petrol lines and the vacuum hose. (I upload a picture to the understanding). m Leo has 3 connections. 2 for petrol and 1 times negative pressure. I connected the petrol hose which goes from the pump to the lid to the left of the 4 connections. The negative pressure on the right. On the top of the lid then the line to the reservoir on the left. The middle cables serve to return from the reservoir. and on the right I put the negative pressure line to the carburettor. Hope so far everything is understandable. Now I ordered a new pump purely out of interest and d When I installed the new pump and connected everything again I pull the vacuum hose and it comes out of petrol. From the petrol hose where gasoline leads to the reservoir comes out gasoline too so comes out of the vacuum and the actual petrol hose petrol. Do you have experience with the pump and in general the Leo 125? Do I do something wrong and just don’t know it?