I have a 09 teryx and have just put 43 hours on it. This week-end i was riding it for about 45 minutes and stopped on the trails to talk to some friends. We I turned it off it started boiling over (HOT) I personally have never heard the fan come on or even ever looked to see if it was working. I let it cool off and headed back to camp where i had seen another teryx and stopped to talk to him about my problem. He just happened to be a service manager at some kawasaki dealer dow south from me. He pulled up some wires that had what looked like a relay and said the first thing that needs to go. He then just jumpered it with a 20 amp fuse and the fan still did not come on. I have heard that there is a breaker on this machine. Is this a breaker like a house that can be tripped like a house breaker? He also said that i just need rid of the relay looking thing and just replace it with a sealable fuse holder and put a 20 amp fuse in it. When i got home i hot wired the wire going to the fan and it never would come on leading me to believe that the fan motor is just gone bad. I have never been in any mud to speak of and the radiator has always been clean. The week before I rode the rex really hard racing my friend on his ranger. We would run them for about a half mile racing and then slow down to about 30 mph and I never had a heating problem at all. I always thought if it got hot that I would see some kind of a flashing bright light but later found out that there is a light that flashes, it just aint bright! So at this time I just think it is a bad fan motor. Does anyone have any ideas on this subject? What else should I check for????