its a throttle over ride system....it cuts off your spark if the throttle sticks.....it is on top of you carb and a sensor in the throttle housing and the brain is under the hood
ok my blaster had a twist throttle and aftermarket carb installed. The orig thumb throtle and carb he gave me have wires comming out of them, so i wandered what the hell that was. So i dont have it instaled. cool