Sportsman 600 twin: overheating??

Hey guys,
I got my carb boot replaced along with new set of plugs and it seems to run great now. But I have been seeming "Engine HOT" or whatever the screen shows when these get too hot.

You guys were right about the boot so thought I could figure this over heating issue out myself, without taking it to the shop.

I did notice there is a slow drip of antifreeze from the front where it looks like PO hit something hard. I have kept the coolant overflow tank topped up… Was curious if there is a sensor or something else I need to fix? Seems like a couple hard accelerations in 10mins of ride time and the screen flashes at me.

Let me know!