Motorcycle Repair: Running hot, thermo sensor, fuse box

Question
I have recently purchased a 1981 Goldwing. Everything seems to work fine except after running for a while. When I come to a stop the temp goes up and I do not hear the fan come on. Is there anyway to check the fan to see if it is working correctly, or do I need to start with changing the sensor out?
The fuse cover is missing, so I don't know if there is a fuse for the fan in the fuse box, or a seperate relay some where. All fuses look to be ok.
Help!!

Thanks
Bill

Answer
Bill,

-you can check the fan directly by applying
power to it. Blue wire is positive.

-Also if you have a test light
or multimeter, check for power on it's
connector.(key on)

-Try grounding the black thermo sensor
wire coming from the fan and see if the fan starts.

-If the power is getting to the fan and the fan works
you will likely need to replace the sensor.