This category gathers the parts that keep the linkage precise and free of play. The group includes control rods and levers, ball joints, retaining clips plus screws and washers for the mounting. If a full overhaul is needed, there are complete throttle control kits and grommet kits, so the whole path from pedal to shutter is replaced in one go.
A common check point during restoration is the worn ball joints and retaining clips – that's where play creeps in and gives the typical "dead" first pedal movement before the engine responds.