06-06-16, 11:31 PM
I'm pretty sure all fuel pumps shut off with pressure. I'd try disconnecting the outlet from the pump. Put your finger over the outlet while it's pumping and it should shut off. If it does shut off then the pump is working and the problem is probably the float needle in the carbs not seating properly and the carbs are flooding. If the pump keeps pumping with your finger over the outlet then the pump is the problem. Be careful with the petrol