You have a FORD Mustang 1964-1966 with a charge/discharge meter, and it is busted?

First let's look at the most probable reason.

The yellow wire of the gauge should be connected to the + of the alternator. The red wire of the gauge should be connected to the start relays, on the contact: side -> + battery. If (accidentally) the red wire gets connected on he start relays, on the contact: side -> start motor, then that's it. The start motor has a very low resistance, and a very large current will try to flow through the pour little meter . . . witch results in, a small smoke signal and the premature end of your meter.

See schematic.

Other possibility: The wire between the battery and the alternator gets disconnected => another smoke signal.

There are two ways to fix your problem . . .

-1- Buy a new gauge.(expensive)

-2- Fix it.(cheap)

The fix:

-1- Remove dashboard

-2- Open dashboard

-3- Remove Gauge

- This will take you app. 1hour . . . and some skin

- The little guy can be partly disassembled.(careful)

A part of the procedure in pictures:

(Klik on the pictures for a larger version.)

Removing the burned wire.	The bare core.	Core with glass-fibre tape applyed.(to protect the insulation of the copper wire)
Rewinding, 2 meter is enough. (notice the direction)	Rewinding some more.	Fully wound coil.(approx. 70 turns) , and wire diameter= 0.02inch
Remontage.