I noticed my ATV started to overheat pretty quick after riding. I tested the fuses and those were good. I hooked up 12V directly to the fan motor and the fan kicked on, so thats good. I unplugged the radiator temperature sensor and shorted the connector (stuck 1 wire in each end to complete the circuit) and the fan turned on. I cleaned all of the connections there, plugged back the wires, and got the engine up to operating temperature and the fan never turned on.
This leads me to believe that the radiator temperature sensor is shot. I've tried to look around and the only one I can find is on ebay for around $80.... Are there any others that are compatible with this or should I just bite the bullet?