Troy-Bilt 50" Super Bronco Choke issue

Hi, I have a Super Bronco with a 24 hp Kohler engine. To start the engine you push the throttle lever past fast to choke. A few weeks ago I did what I always do and something snapped or popped or something. The choke no longer works. It will still start, I just have to keep cranking it. I usually crank it for about a minute and it will finally start and I know that this is wearing on my battery. The throttle still works but the choke doesn't. Can anyone tell me what is wrong and what I need to do to fix it. The serial # is 13WQ93KP011.

Thanks,
Bob

Please take us a nice picture of the linkage connection and the carb. We can not see it from here.:smile: