have given the issue ^ some more thought, fitted with an electronic dizzy, perhaps someone changed the ign to 12V before? This can be tested easily, get a normal coil and hook the yell wire to the +ve of coil and -ve to ground. Measure the voltage across coil, if it is 8-9V, resistance wire in place. The yell/black wire suggests someone may have put a 12 V bypass wire in. Trace back where this wire goes.
While Im on topic, I have a simple procedure for bypassing the resistance wire for full voltage ign. This has been done many times on the old forum, but it involved either a relay or dropping the steering column to get at the switch.
This procedure is simple,no compromise, cheap(about $1 in wire),bombproof and reversible; back to points in an instant.
On the fuse panel of all old holdens(which is easy to get at, i think im correct in saying all), there is a thick pink wire, top right in pic below.(the pic of the connector shows where the thick pink wire attaches to the pink resistance wire.
Attach a wire of suitable gauge to run all the way to the +ve of the coil from the thick pink wire at the fuse panel. If you wish to be cautious a fuse can be placed in this line, but something the original circuit isnt protected for either.
Leave the existing yell wire attached to the coil, (it will be needed in the starting circuit). That is all there is that needs to be done. Obviously if needing to go back to points dizzy, disconnect the wire that you have added at the coil.
Edited by devilsadvocate, 02 January 2006 - 06:10 PM.
