The Venture Lite had the fan stock. The only time I have ever seen the overheat light on was on this last trip I took.
After FULL throttle for 3/4 of a tank, the light started blinking. I was breaking trail through 4 feet of fresh snow, and when I reduced power to 10500 rpm, the light went off and didn't come back even after short bursts of full power in the deeper spots.