68 Signet electronic ignition trouble - HELP..

Carb'd engines always require thought when starting.
In the best scenario with a nicely set up automatic choke and fast idle, its a habit. But it still needs to be set and kicked off. When starting hot, the throttle on some engines need to be cracked. He might as well learn to understand and finess it. One learned it applies to anything - a lawn mower, a sno-thro, a moped or chain saw, or in my case it was a wildland fire pump. That last one was an engine I never ran before - and it was when I realized I didn't need to know the specifics.

Shouldn't need any fuel delivery to start the engine. When a carb sits overnight or longer, the intake manifold dries out. Additionally, today's pump fuels have a larger portion of light components that evaporate at lower temperatures. So those two factors combined mean the enough fuel needs to be placed in the intake (pumpo shots) and have enough light end materials to condense on the walls and get into the cylinder. As long as there's enough fuel in the bowls to fill the accelerator pump that's just the way it is.