Hard starting when cold

Uh, the only time you hold the pedal on the floor is to clear a flooded engine. Holding the pedal down actually opens the choke a little to help clear excess fuel.

With the choke butterfly closed as you have it adjusted, try it this way:

Cold engine
Key off, press the pedal all the way to the floor 2 or 3 times, releasing it all the way each time. Crank engine with no throttle. It should start. It may need a little "tickle" with the pedal to keep it running - that would mean you need a little more choke.

WOT while cranking should be avoided if it is not flooded. A flooded engine will stumble, miss & belch black smoke from the exhaust.

B.