There is no way to by-pass the seat sensor with jumper wires as it's a Hall Effect circuit with a reference voltage input and a reference voltage output, it's not an analog circuit which would accept jumper wires. Don't know if they still do, but Bobcat used to offer a kit that would eliminate the seat sensor on the old C and F series machines. It's either that or replace the seat sensor, that is if your seat sliders are still in good enough shape to operate that seat sensor. BTW, make sure there's nothing under the seat preventing it from engaging the sensor.