What would make a kart steering dart. Got two recons set up exactly alike steering geometry. (Caster/camber) Only difference is steering wheel height. Smooth driving kart is in lower position. Dart driver in top.
something may be bound up. check all the heim joints and steering block everything is lubed up no rust sticky gunk build up. the steering shafts are bare steel and could rust up inside if water is left in the blocks etc. try loosening everything up spray with break cleaner then lube of your choice.