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  #11  
Old 9th September 2013
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So there it is. If you need magnets for your 84 to 90 Sportster, get a Big Twin six magnet rotor (preferably used), add your best source of heat (I suggest some sort of cutting torch or a BBQ grill), then carefully remove and let them cool to the touch.

This little experiment cost me a little over $50. If you can score a used rotor, it may cost next to nothing. Good Luck !
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  #12  
Old 10th September 2013
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I'd like to have some demensions on this rotor. Notice the shield already in place.

https://static---kcint.app-hosted.co.../7/75117_a.jpg

The price ain't bad either. I spent that on a $30 rotor plus shipping. You get magnets and a shield ! Hmmmmm.........

http://www.ebay.com/itm/22-32-AMP-ST...item43bd4f2554
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  #13  
Old 21st June 2014
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So once you removed the magnets from the BT rotor, how did you attach them to your sportster rotor? Just some JB weld?
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  #14  
Old 1 Week Ago
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Default Loose magnets Magnets

Hi, i was inspired by the spudgers and templates form this form so I turned on my pc and designed a couple of tools to make it easier to glue in the magnets


cheers

Sven
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  #15  
Old 1 Week Ago
sven883 sven883 is offline
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Here you can download the 3d print stl files them:

https://www.tinkercad.com/things/hHVSwEGlPoJ

and here you can look at them in 3d (no software needed)
https://skfb.ly/6RrP7

cheers

Sven
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  #16  
Old 3 Days Ago
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actually to permanently fix this issue buy a encased magnet rotor.
when i was experimenting with these when doing a hand rewind, i too noticed a mm or so variation between the xl/bt.
that said, they probably would work but i will throw this out> spacing is critical to the magnetic flux lines and that effects output. a pmg is NOT an alternator that can be field forced.
also, gluing magnets back together is a bad idea, for one, the magnet will not be whole magnetically as a new polarity line is formed.
a good source of magnets is from
K&J magnets
it has been awhile but i believe they can make them to your spec's.




Last edited by bustert; 3 Days Ago at 15:09..
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  #17  
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Also check polarity of the magnet before install. The system need the magnets to be polarized correctly.
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