Pertronix Upgrade Question

[ddrieck]

I have upgraded my 1985 Mercruiser 470 from points to the Pertronix ignition.
My question is what color is the resistance wire running to the coil so I can be sure I have unhooked the correct wire so I get a solid 12v to the coil?
Also, where exactly is the resistor itself located and can I just remove it and slice back with a heat shrink butt connector?

 

[matt167]

Just run a wire from the choke coil.. purple wire is your resistance wire. But if you disconnect it and hook it to the choke coil it’ll work ( as long as the pertronix stays working that is )

 

[ROY WILLIAMS]

I have upgraded my 1985 Mercruiser 470 from points to the Pertronix ignition.
My question is what color is the resistance wire running to the coil so I can be sure I have unhooked the correct wire so I get a solid 12v to the coil?
Also, where exactly is the resistor itself located and can I just remove it and slice back with a heat shrink butt connector?

1978 MCM470 Pertronix 1146A 1992 year ago ... 40 years ago ... 2024 year .
so the key ignition , engine run ! now the engine key on , no engine ...
30 seconds the key ignition on , no engine .....
damaged it ......
the choke carb Pertronix 1146a red wire , then 1146A black ignition coil - neg ,, + coil the 12 volt .. choke carb 12 volt the 1.8 resistance ignition coil + ........ run engine ....