Sensor

Whats that sensor on the bottom of the radiator

For the PTC heater under the carb.

Im running a weber do i need it hooked up

I removed my PTC heater plate when I installed my Weber a decade ago. If one wanted to use that PTC plate under the lower adapter, you'd need to get longer metric screws than supplied in the Weber kit.

Keep that sensor in the radiator as a plug !

Thanks i haven't driven it in like 4 day thought i needed it