May want to find a KLR specific forum. I know on our DR650, if the light quits working, it meens the screws fell out of the switch and you need to quit riding it until they are found so the dont go through the motor. But I dont know about the KLR's. You could also find a manual on line and find the diagram for the switch.
I know there is alot of KLR lover's out there that could and would help.