Kawasaki Ke How To Clean The Wiring Connections And Check Grounds? 1979 Kawasaki Ke 250?

How to clean the wiring connections and check grounds? 1979 kawasaki ke 250? - kawasaki ke

This is my first bike, I'm new to this. my turn signals not working correctly, I said, the wiring connections most likely to be dirty, or I'm grounded. What am I supposed to do as you solve these problems?