flywheel magnet..can it go bad?..get too weak to make the spark?? - MyTractorForum.com - The Friendliest Tractor Forum and Best Place for Tractor Information
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Old 03-09-2011, 12:59 PM   post #1 of 5
ericwest
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Default flywheel magnet..can it go bad?..get too weak to make the spark??

I have a question for you guys....I have a tiller with no spark...(I talked about it in another post)...but I am curious...can the flywheel magnet go bad?...I realize it could crack ...or get physically damaged...but assuming its intact...can it over a period of years grow weak??...and no longer produce spark??...
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Old 03-09-2011, 03:43 PM   post #2 of 5
Walt 2002
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Default Re: flywheel magnet..can it go bad?..get too weak to make the spark??

I have seen warnings from B&S to not hit the flywheel hard with a hammer or it might result in magnets losing their strength but I have never run across it actually happening.

You should be able to check the pull against a known good magnet. I didn't read your other post but are you sure the condenser & points are good? Condenser being the most likely culprit.

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Old 03-09-2011, 03:48 PM   post #3 of 5
Slow Crawler
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Default Re: flywheel magnet..can it go bad?..get too weak to make the spark??

I have never see one go bad. But I have seen the magnet fly off the fly wheel.
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Old 03-09-2011, 06:03 PM   post #4 of 5
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Default Re: flywheel magnet..can it go bad?..get too weak to make the spark??

The magnet is not a real permenant magnet.They will go bad if broken or chipped.If it holds a scredriver good then it's probably ok.Check the pick up gap and see if it's tolerances.Might be a bad pic up coil do you know if there is any resistance on the coil?
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Old 03-09-2011, 07:34 PM   post #5 of 5
Kbeitz
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Default Re: flywheel magnet..can it go bad?..get too weak to make the spark??

I got a kohler engine that wont spark...
If I put the coil in my coil tester it sparks but not in my engine.
Gotta be the magnet...
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