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12v conversion

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wil

07-08-2001 10:58:11

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In converting my 9n to 12v negative ground I am trying to preserve as much of the origional witing harness as possible. Is there a wiring schematic that shows how the existing 6v regulator is wired? Is it in series between the single wire generator and the battery? Why is a second inline resistor needed for the conversion?

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Jim WI

07-09-2001 10:30:35

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Re: 12v conversion in reply to wil, 07-08-2001 10:58:11

The others pointed to wiring diagrams so I'll just talk about it.

The wiring for the generator should be a single wire that connects the generator to the cutout relay (it's not a voltage regulator). If you want to preserve the existing wiring harness just remove the cutout relay and splice the wires that were on the relay together. The end that was on the generator should now go on the alternator's output post (the big one on the back). Add a second ballast resistor is series with the OEM resistor and wire the remaining portion of the alternator per the wiring diagrams. Flip the connections on the battery and you're done!

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Mountainman

07-08-2001 12:49:33

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Re: 12v conversion in reply to wil, 07-08-2001 10:58:11

Most folks use an alternator that contains it's own regulator when converting and therefore eliminate the original regulator altogether.

A second resistor is required to reduce the voltage at the coil to an acceptable amount. Coils overheat easily.

But why are you converting it?

N � joy.

Mountainman (CA)

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Tom-Pa

07-08-2001 12:46:27

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Re: 12v conversion in reply to wil, 07-08-2001 10:58:11

Try NSeries website and check the column on left.

N-Series.com

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Tim

07-09-2001 08:35:22

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Re: Re: 12v conversion in reply to Tom-Pa, 07-08-2001 12:46:27

Try this diagram. The second resistor is to give the overall ignition circuit (resistor + wires + coil) a resistance between 2.7 and 3.3 ohms allowing only 3 to 4 amps through the coil, otherwise it will burn up.

Good luck, Tim.

9N wiring diagram

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