2 problems, no neutral, and no idle

If the idle adjustment on top of the TORS "brick" is having no effect, the screw is either broken or stripped, or the secondary throttle cable is strecthed beyond limits or is about to break anyhow.
Either pull the two covers off the "brick" and inspect everything to find the problem, OR get a tors elimination kit = peace of mind, new throttle cable, easier carb tuning!!