Ok you mentioned the choke chamber ?? Is there a auto choke system on your engine ?? Also called a EZ start .......
Or do you have a red primer bulb on it ??? Seems like since it sat up for toooo long and the carb is clogged up.... The main jet which is your bowl nut has a hole in the top of it and 2 in the sides...... Take a bread tie with the plastic stripped off and run that thru the holes on the sides... A smaller wire for the top hole then spray well with carb spray....
Or you need to rebuild the carb all the way with a kit....... If you need a video link to help we can help you with that Mon Ami ~!~!
Let us know........