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Magneto on MD

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Geoff Hallock

06-21-2003 15:04:48




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Hi guys, I'm having no luck getting fire out of the mag on my MD. had spark last fall So far have changed the points, condencer, coil, and wire and am having no luck at all any suggestions would be appreciated Thanks Geoff




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Gary-Miss

06-22-2003 02:11:05




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 Re: Magneto on MD in reply to Geoff Hallock, 06-21-2003 15:04:48  
First step is to disconnect the kill wire going up to the manifold and try it. It could be shorted out. Next, remove the mag, clamp it in a vice (make sure you note which direction the rotor was pointed), clamp a pair of vice grips to the drive and and rotate it. It should have a loud click. The impulse holds the mag momentarily at cranking speed, then turns it loose so that it generates the electricity. Check the points. On a mag they have to be clean and shiny and set right. They aren't as forgiving as distributors.When checking it with the vice grips you don't have to rotate it the full revolution. You can just rotate it the the impulse click and then back and forth. Good luck.

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Eric

06-21-2003 20:25:48




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 Re: Magneto on MD in reply to Geoff Hallock, 06-21-2003 15:04:48  
Could have a bad coil



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J in Pa

06-21-2003 18:22:33




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 Re: Magneto on MD in reply to Geoff Hallock, 06-21-2003 15:04:48  
try checking the impluse spring and the pawl springs. with the magneto out of the tractor , try turning the coupling. it should have a good bit of resistance before it trips to produce a spark. the spring sometimes gets broken or weak.the pawl springs sometimes get weak or broken as well. check them both but the impluse spring has to strong for the mag to work correctly. good luck.

J in Pa



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here, try this

06-21-2003 16:51:13




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 Re: Magneto on MD in reply to Geoff Hallock, 06-21-2003 15:04:48  
have you pulled the armature? mabe gunk shorting it out.



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