While tearing down my bike for my winter project I came across two parts that I am unsure of their purpose. First being some wire with a odd sensor on the end. It came off the wire harness somewhere and Im not sure where it came from or where it goes. The second part is the weird box that sits on top of the carb. The throttle cable runs though it to the needle. What does this box do? Why is there two wires going into it? Is it better to remove this and get a basic carb top?