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Fuller & Johnson NA Wiring Diagram


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Old 07-15-2005, 08:48:02 PM
Larry K Larry K is offline
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Question Fuller & Johnson NA Wiring Diagram

My 3 hp. Fuller & Johnson, model NA, has a low tension Splitdorf magneto. Does this magneto need a buzz coil to boost the electrical output or does the wire run from the nut on the right side directly to the switch that goes to the ignitor? It is a 1923.

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Old 07-16-2005, 10:46:17 AM
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Elden DuRand Elden DuRand is offline
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Default Re: Fuller & Johnson NA Wiring Diagram

Quote:
Originally Posted by Larry K
My 3 hp. Fuller & Johnson, model NA, has a low tension Splitdorf magneto. Does this magneto need a buzz coil to boost the electrical output or does the wire run from the nut on the right side directly to the switch that goes to the ignitor? It is a 1923.

Thanks.
Larry:

The output of the magneto goes directly (through the switch) to the ignitor. I've never seen any kind of low tension mag setup that requires an external coil.

I will make an exception! I had an American LaFrance with an Eisemann GR-4 magneto on it that would generate low-tension juice to fire the high-tension coil that came with it. The coil was mounted in a housing that acted as a switch to switch the source of voltage between the battery and the magneto. You'd switch it to "Battery" and, after you got the monster turning over at some speed, you could switch it to "Mag".

The high voltage output of the coil went through the distributor on the mag and then to the plugs.

Take care - Elden
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