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Magnetos, Ignition Coils and Spark Plugs Discussion about magnetos, buzz coils, spark plugs, ignitors and low tension coils.

Magnetos, Ignition Coils and Spark Plugs

Wizard LT Magneto Help.


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  #1  
Old 10-20-2015, 10:35:12 AM
danpt danpt is offline
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Default Wizard LT Magneto Help.

Hi, I have a Fuller & Johnson 2 1/2 hp fitted with a wizard magneto. The engine will fire once but not continue running, I had it running beautifully today using a battery and coil.
I would appreciate some advice on how to check that the mag it set up properly, also the magnet consists of two thin magnets side by side, they are fitted so that there is one north and.one south pole on each side, is this correct?

Many thanks Dan.
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Old 10-20-2015, 04:31:34 PM
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Nick Nick is offline
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Default Re: Wizard LT Magneto Help.

When mag is at rest you want to adjust the set screw on the anvil so it just touches the hammer. You can remove the whole setup, put it on the bench and use the starting lever to trip the mag and watch for spark. Does it make a good blue spark every time?
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Old 10-21-2015, 07:01:10 AM
danpt danpt is offline
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Default Re: Wizard LT Magneto Help.

Hi Nick, I checked the set screw as you describe and found it to have a fair gap, I have adjusted this out.


I then removed the whole igniter assembly and tested it on the bench. There are sparks visible but they look rather small. They are nothing like the flash I get when I disconnect the coil set up. That said, I have never seen what they should look like and maybe it is a poor comparison to judge them against a 12v car battery!

Dan

---------- Post added at 06:01 AM ---------- Previous post was at 05:56 AM ----------

I forgot to mention, when the magneto is off the igniter bracket and it is moved one way or another, it does not return to its original starting point and ends up a few degrees off. I do not know if that is normal or not, with the springs removed, the armature moves freely. All of the spring pivots are free and well oiled.

Dan
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Old 10-21-2015, 11:16:39 AM
Kirk Taylor Kirk Taylor is offline
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Default Re: Wizard LT Magneto Help.

Quote:
Originally Posted by danpt View Post
Hi, I have a Fuller & Johnson 2 1/2 hp fitted with a wizard magneto. The engine will fire once but not continue running, I had it running beautifully today using a battery and coil.
I would appreciate some advice on how to check that the mag it set up properly, also the magnet consists of two thin magnets side by side, they are fitted so that there is one north and one south pole on each side, is this correct?

Many thanks Dan.
All of the north poles should be on one side and all of the south poles on the other.

Kirk
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