What does tors do?

its the Throttle Over Ride System

it is supposed to shut down the quad in the event that the throttle sticks, but its known to malfunction and cause several problems

a search will reveal a lot of info
 
Search button bud, million threads on it. but it is a useless safety feature that will just cause you troubles. Throttle override system
 
to be honest, i have never had a problem with the TORS, i have always had a problem with the parking brake.

what TORS does really is, that is has two sensors, one is to see where the thumb throttle location is, the other is to see where the cable for the carb slide is.
when they do not match location, it cuts ignition to the plug.

they have been known to miss up and cut ignition for a miss reading.