I have a MK1 and MK2 both with the stock fuel pump,If I have empty carbs and need to get fuel to the MK2 It takes ages on the starter (shorts bursts throttle open) to get fuel through,the other day I went to start the MK1 (tank was off for about 6months wouldnt start and had other things to do) when I opend the fuel tap fuel flowed straight away and carb filled and the sucker fired straight up ( I have a inline filter on both that I can see fuel flowing)so as the MK1 is flowing without the starter going I take it the diaphragm has gone?
Any thoughts anyone.