Bike is a '95 Kawasaki Ninja ZX6R.
The problem is that the rear brake/tail lights keep blowing,
and my left blinker is working speradically. Has anyone seen
this problem before? Bad wiring? Any insight is appreciated, thanks.

 

If You Have Aftermarket Blinkers On That Bike I'm Almost Certain That Your Wire,harnesses,plugs Are In Bad Shape. Go Through Your Connectors With Dielectric Grease And Replace All Bad Wires, Should Clear That Right Up. Also Sounds Like You Might Have A Short Or Pinched Wire For Your Tailights/brakelights, Check This First!!! Use A Test Light If You Have One To Determine Which Wires Are Bad By The Brightness Of The Light. Good Wire More Light. Bad Wire Dim Light

Hope This Helps

 

Sounds like a pinched wire... check it out.