2006 650 Brute Force Kawasaki fan not working, cleaned the carburetor before, remove gas tank.

Fault finding while working. 2 bolts to remove gas tank. Other video has carburetor cleaning. It was the brass 2 point fan switch. They are normally open cold and close when they hit the heat range close. I'm going to install a 2nd fan with a toggle switch, fuse to have as a turn on leave on or if really hot.