Choke doesn't seem to work as it should
Note where the choke butterfly is on the carb when dead cold and unstarted.
Push the throttle to the floor once, then check it.
It should be most of the way closed and just a little spring resistance to it.
You can also start the engine and open/close the butterfly by hand to see what it wants while it's running.
Pretty easy to tell if it wants more or less choke doing this.