When I first got mine... I had a hell of a time starting it.
I learned when it was cold that pulling the choke all the way was a bit rough so I pulled it 3/4 and it would start right up. It sputters after 20 seconds so, I push the choke halfway and it warms up nicely.
I drive mine every day to get coffee and it doesn't quit.
I have gone around and replaced the basics, alternator, distributor, etc. I am circling around until I have to spend $1000 or so to make a performance or fuel economy improvement.
I think the prior posts here and using the choke in different positions will get you going.
Oh... I NEVER step on the gas at a cold start now!!! Just the choke!!!