Have you cleaned out your radiator and oil cooler? Spray both sides of them down. Most say don't use a power washer, but I do with a tip that is designed for light cleaning. You can also test your thermostat by taking it out and boiling it with a thermometer in the water and see what temperature it opens at. You can use the search engine on this site to find out the temperature it is supposed to open at.
2007 Rincon, Moose racing A-Arm Guards, Alum Products skid plate, Atv Guru front bumper, Moose Rear bumper, Koplin trunk, Crank Case Vent, Big Horn 2.0 Radial tires. Line-X Racks and Bumpers. 3500 Lbs Superwinch, Cycle Country Plow, Oil cooler spacing mod, screen mod, grease fittings on front and back A-Arms.
2007 Rubicon. TerraCross Radial tires, Honda skid plates, A-Arm guards
2008 Teryx LE, Big Horn radial tires, 3000 Lbs. Superwinch, Blue tooth stereo.