Farmall Cub

I have a Cadet 102 with a Kohler K241AS. The rod the throttle plate is attached to is so loose in the carb housing it sucks enough air in around it to run wide open without opening the throttle. Is there any bushing or anything to fix this as part of a rebuild kit or must the whole carb be replaced?

Chris,
I hope these are readable. Yours is a fairly common problem.
I'd say you're looking for a 25 757 15.