No spark from Mag

Oldiron29 · Apr 7, 2012

Hi guys someone gave me a small wisconsin air cool engine with external mag. fairbanks morse FM
I cleaned all the contact and points, Is there a way to test to see if coil is no good? I would like to trouble shoot it before I spend money on it or send it down the road. oldiron29

greygoat · Apr 12, 2012

I've got a Magneto coil tester that could give
you an answer in seconds..I'm in Western Wis.,
near LaCrosse An "Old Magneto Man" however did
the test under a heat lamp, for 15 minutes or so,
as they're more likely to fail as they get hot.
Finally..if the points look ok and are gapped
properly, the thing that most often fails, even
when sitting, is the condenser.
Magneto points, condenser,coils, are still
available, Y/T even has them,under electric parts
my e-mail is open if you need more help.

Oldiron29 · Apr 13, 2012

Greygoat, I will see if I have a condensor on the shelf from an F-4 I think it is the same.
oldiron29

Bob Harvey · Apr 13, 2012

'Marks' in Penn. 860 537 0376 helped answer my questions. HTH

huntingreen2day · Apr 20, 2012

Take the condenser our and clean it with fine sand paper. Also clean any brackets that hold the condenser or places in the magneto where it sits. This has worked many times for me.

No spark from Mag

Oldiron29

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greygoat

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Oldiron29

Well-known Member

Bob Harvey

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huntingreen2day

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