Hey folks.
Had to swap out the fuel pump on my VT a few months ago. Problem now is
if the fuel is low when I park my car up for a few hours or I park the car on anything
but flat ground the car wont start. I can here the fuel pump working but its not pumping fuel.
Before I changed the fuel pump out there was pressure at the fuel cap when i'd go to fuel up but now theres no hiss noise when I remove the fuel cap.
Could the new fuel pump be dodgy or do I need to replace the O-ring on the fuel pump assembly on the top off the tank ?
I had the fuel filter changed just befor replacing the fuel pump. Got the pump of ebay, brand unknown.

Thanks in advance.

Will