At my last poker run I experienced some overheating issues due to mud packing in the radiator. I knew exactly what the problem was as I have had it happen before on both my CFMoto and my Polaris Sportsman. Today I removed my grill to confirm my suspicions. It took about 5 minutes to get the grill off. I do wash my machine regularly and hose down the radiator. The problem is the half of the radiator is in a spot where you can't access it with a hose. It doesn't help that the oil cooler is mounted in front of the radiator. Anyway, this is what I discovered. As you can see the oil cooler got hammered pretty good too.