I haven't started working on this issue yet, but thought I would post it and see if could get some ideas on what it could be.

 

86, 1800cc, carbed, 100,000 miles, recent tune (plugs, cap, rotor).

 

It starts right up when cold, but has a hard time starting when warm after sitting for around 5 minutes. If I restart it right up after I shut it off (while warm) it will start right up. Any ideas to help me shorten my search?

Greg, if you hold the pedal to the metal, does it start any easier?

I am thinking heat soak is boiling the fuel in the bowl and flooding the engine.

Black smoke when it does fire?

Any mods done to the carb heat system?

Maybe the coolant hose to the carb base is plugged?

Not much help, sorry

The carb boiling over is a thought I have. When it does finally start up, it acts as if it is flooded.

 

I am thinking the plugs might have fouled. I just changed them, but funds are tight so I used autolights. I should be ashamed. I don't even step that low with my Ford.

 

I haven’t seen black smoke, when this happened it was already getting dark outside. The engine itself runs great and stays plenty cool. I haven’t got to spend much time with this issue yet, but my guess is that the plugs are bad.

 

Any other suggestions on other things I need to check, I am all ears.