My 1993 ex500 that I recently engine swapped is now back in full swing with a new issue. It overheats, and the temp gauge is consistently reading at the H or slightly below it. I was able to get it home without anything serious happening and noticed my fan isn't turning on. I took the wire that connects to the switch on the radiator off and bypassed it with the ignition on to see if the sensor was bad but the fan didn't come on at all, I checked the 10amp fuse and it looks fine. Does that indicate that the fan is bad or is there something else I should look for?