Ionfu, Your lucky to get yours to kick in at 200*. Mine once it gets a degree or two over 185* my fan starts to kick on and will not kick off til it's below 184*. Once the outside temp is 80* or more it will kick on and stay on. This is with two different clutches. I put in a recored radiator 5-6 years ago and it was great for a year or so then the kicking on and staying on started happening. I had sealed up the front end so all air goes through the radiator.I have a 185* stat in it and the engine runs right there,