i have an 05 450r. i have full hmf exhaust with air box lid removed and a 175 main jet. i have a vortex x10 cdi recently purchased and as expected it runs hotter now. hot enough to turn my red light on saying too hot. i just changed to engine ice coolant and have not rode yet to know if it helps. i just ordered a billet inline temp gauge and would like to know what the optimum engine temp should be. i live in new mexico and ride in 100 degree weather all the time. sand dunes and tight sand trails is what i ride. thanks for any and all info