what i see is you have the throttle valve linkage way out of adjustment.
the rod at the carb throttle stud need the bolt removed and a spring put on to pull the slot all the way forward to contact the throttle stud.
the throttle valve linkage should move rearward as the throttle moves rearward at the same time,but you should be able to move the throttle valve linkage with out the throttle lever moveing,the spring should snap it back forward against the stud..so it move freely with out binding
edelbroke sell an extention to make the rod longer to help adjsut the rod out when going toedelbrake carbs
if its a 2-v linkage with a 4-v intake/carb now..that rod may need to be cut and a short piece welded in to make it long enuff the threded aprt adjsut out to the needed specs
running it with it like that and out of adjustment will burn the tranz up in short order and the shift point will be all wrong.