Pertronix

[Anonymous-0]

G'afternoon........
Picked up a pertronix unit for a 730 JD. 12V neg. No instructions with it at all. I assume I need to hook the red wire to the positive post of the coil and the black to the negative post on the coil.. Is this correct.

Thanks in advance
Dave

 

[buickanddeere]

Is your tractor currently wired - or + chassis? Hook the Pertronix up with the wrong polarity,the smoke will leak out and it won't work.
What is the part number on the Pertronix?

 

[Anonymous-0]

wired 12V neg ground.

 

[Anonymous-0]

I have rewired to 12V neg ground. Item I have is a&i ignition conversion kit. For JD's w/12v neg ground systems only. I understand polarity. My question was "does the red wire go to + side of coil and black wire to - side of coil. Having never put one on before, and no instructions with the unit, I wanted to wire it right the first time. The wire from the ignition switch is now 12v neg ground to the + side of coil. Thanks

 

[Anonymous-0]

Sure looks like it Dave,
line 12 of the installation sheet says to connect the black wire to the coil - terminal.

Line 13 says to connect the red wire to the coil + terminal.
Here is a link to installation instructions, with 12V neg ground being the right side.
12 V neg ground wiring..

 

[Bob]

Just a note...

(ASSUMING this is an "Ignitor")

If you have a low primary resistance coil, BE SURE to hook the system up like diagram #3, with an appropriate ballast resistor.

If the primary ignition current (engine at rest) goes over about 4 Amps, you'll let the smoke out of the module AND the coil.

They also make an "Ignitor II" (mostly for newer applications) that is able to control primary ignition current to a safe level, allowing the use of "hotter" coils.

 

[buickanddeere]

Is the coil 1.5 ohm or 3.0 ohm? Is there a ballast resistor system on the tractor
http://www.mercurycougar.net/forums/attachment.php?attachmentid=6001&d=1121372803