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No spark from Mag


 
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Oldiron29
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Joined: 22 Oct 2007
Posts: 1489
Location: Suffolk, NY

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PostPosted: Sat Apr 07, 2012 1:27 pm    Post subject: No spark from Mag Reply to specific post Reply with quote

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
 
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greygoat
Tractor Guru


Joined: 30 Dec 2007
Posts: 3571


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PostPosted: Thu Apr 12, 2012 5:47 am    Post subject: Re: No spark from Mag Reply to specific post Reply with quote

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.
 
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Oldiron29
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Joined: 22 Oct 2007
Posts: 1489
Location: Suffolk, NY

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PostPosted: Fri Apr 13, 2012 2:43 am    Post subject: Re: No spark from Mag Reply to specific post Reply with quote

Greygoat, I will see if I have a condensor on the shelf from an F-4 I think it is the same.
oldiron29
 
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Bob Harvey
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Joined: 18 Jan 2003
Posts: 4823


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PostPosted: Fri Apr 13, 2012 3:49 pm    Post subject: Re: No spark from Mag Reply to specific post Reply with quote

'Marks' in Penn. 860 537 0376 helped answer my questions. HTH
 
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huntingreen2day
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Joined: 14 Aug 2008
Posts: 485


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PostPosted: Fri Apr 20, 2012 7:15 pm    Post subject: Re: No spark from Mag Reply to specific post Reply with quote

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.
 
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