Volvo penta 5.7 GS intermittent fuel issue (diodes failure)
Carbureted 5.7 L Volvo penta GS PWTR. Was getting intermittent fuel related issues, but after replacing the entire fuel system; carb, pump, pick up, filter, anti syphon valve it was apparent further exploration was needed. The fuel pump would get power then it wouldn’t, turned out it needed new diodes, and I replaced the relay housings and some burnt wires in the process. Good luck,