1st.............all fuses are good

all bulb are good

all lights work except..............................

Bright lights (head lights)....dim are fine

Brake lights dont work

only the speedo and a/c light work....rest are black

Where do I start?

First: Replace all fuses with fresh ones,(that means new). If this does not help then it is a matter of tracing out from the power source, the hot side of the fuse box.

TRUE TRUE..

BUT MAKE SURE ALL CONTACTS ARE CLEAN, ie; clean where the clips hold the fuse. w/ a file or sand paper.

A bad ground is usually the start of all electrical problems.

and here we go again.. check the brake light swith which is located at the pedal w/ two wires coming out of the switch,

use an ohms meter on it and see if it works.

Next...the dreaded turn signal switch.

the brake lights, the head lights, and the turn signals all run through that switch..

It's one of the most common problems w/ almost any early Z.

If you know how to diagnose a switch w/ an ohms meter. get to it.

If not, you gotta find some one who can, because you probably dont want to spend the time looking for a new one or pay the price of a new one.

get back to me after you've checked these things out