MG Car Repair: 1970 MG Midget........Electrical, test light, mg midget

Question
The running lights are not all working.  The right rear does work, and the other three bulbs have been checked and are good. How should I go about finding the problem?

Answer
Hi Ric,
You need a 12v test light and a wiring diagram to test circuits. If one is on and the others have good bulbs but are not on then it is in the wring. The switch is good because the one works. If you don't have a diagram let me know and I will put one up on my web site for you to copy.
Howard