No fuel...likely the pump but not sure

Not starting while cold?
Not starting while hot?
Unless you have an electric fuel pump I dont see what electrical would have to do with it not starting unless the problem is with the ignition.
Do you have a vacuum or fuel pressure gauge to check the pump.
What carb are you running? Is the accelerator pump working, squirting gas into the carb?
Dont use starter fluid on an engine that wont run, the issue is most likely electrical if it wont start with a little gas in the carb.
Is the gas tank original, you could have debris trashing the pump and or filter.