Hey guys. New to the forum but not to riding or to Polaris. I've been riding and wrenching on bikes, quads, and SXS's for over 35 years.
I bought an old 2000 Sportsman 500 a couple months ago to use for hunting. After repairing a couple of relatively minor issues, it runs and rides great but I cannot get the fan to work properly.
Here's what I've checked so far.....
(1) The fan works fine (checked it with a jumper)
(2) The circuit breaker is fine (unless there is another one that I'm not seeing).....verified voltage in and out with a meter
(3) The coolant sensor (on the radiator) is fine, but I replaced it anyway, just to see if there was any change and there was none. Interestingly, when I jumper wiring harness that the coolant sensor plugs into, the fan will come on.
(4) The only thing that I haven't checked or replaced is the temp sensor on the cylinder. From what I've read and based on my experience with other Polaris engines, the fan should default to on (fan should run) on when I unplug that wire.......but it does NOT come on when I unplug it.
Where do I need to go from here? I was going to replace the temp sensor, but because the fan doesn't run when I unplug that wire, I really don't think that's the issue. What am I missing?