</font><font color="blue" class="small">( I have a Cub Cadet 1250, as I operate the tractor, the choke works out, I push it in and it works out again. I have repositioned the cable but can not stop this. Any help? )</font>
I had that problem with my 1450 and was able to install a spring on the carburetor lever. You don't want one too strong or the choke will not stay out when you need it - just strong enough to offset the vibration causing it to move out.
Bob B.