Riding yesterday in about 2 ft of powder. After breaking trail and stopping to clear a way around a tree, started sled up and temp warning light came on for about 20-30 seconds. Once I began riding again no light. This occurred the rest of the day, only after shutting sled off and restarting. The light never came on while riding. I have never had this happen before, and never even had the temp light come on. Only thing that was different was I rolled sled over to get unstuck about 30 mins before the light came on the 1st time. Is this something I should be concerned with? This is on '05 Rev 800, 159 stretched from 144 with stock cooler. Lots of pow and ambient temp was about 28-30 degrees. Light did not come on when unloading into garage after hour long ride home, sled had cooled down. Thanks for your insights.