cj-5

I have a 1978 Cj-5, when the key is in the ignition at the on position all the lights ect work. When I turn it to try and start it I lose all power! Any ideas?

Unfortunately I am having to put my CJ up for sale. The economy has hit our family pretty hard recently, but my loss is your gain. I am selling my 79 CJ-5. It has an AMC 360 V8, put in about 5 months ago, T-150 put in at the same time as the motor, Dana 20 t-case also put in 5 months ago, brand...