How do you fix too high rpm even though the idling adjuster has been adjusted to minimum?
Assuming it's an older vehicle with a carb, check to make sure that the choke is open all the way. Also, check for a vacuum leak and possibly a stuck float. If it has adjustable throttle linkage, make sure it's adjusted properly.
It sounds as though your safety neutral switch has to be adjusted. It has an adjustment kind of like screw that you can adjust. I suggest having someone that knows what they are looking for on it to do it. I had my safety neutral switch replaced and it did the same thing until I took it back and they re-adjusted it.
While regulation of minimum wages on the city level started in some British localities as early as the 16th century, it was not until 1909 that Trade Boards were developed to set official minimum wages for certain occupations, though these were eventually abolished in the mid-80s. The first national British minimum wage was enacted on April 1st, 1999.