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Ironhead Sportster Motorcycle Talk (1957-1985) For all those that wanna talk about Ironhead Sportster Motorcycles

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  #841  
Old 15th December 2018
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any theories on why the points are held open longer by the wide lobe? checked the f.s.m. did a search here,checked stickys.
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  #842  
Old 16th December 2018
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Quote:
Originally Posted by brucstoudt View Post
any theories on why the points are held open longer by the wide lobe? checked the f.s.m. did a search here,checked stickys.
To keep from over-dwelling the coil on the following cylinder.
Increasing dwell beyond "enough" just makes un-necessary heat in the coil.
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  #843  
Old 16th December 2018
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thanks for that.
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  #844  
Old 16th December 2018
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Just a thought, is there anything preventing stealing the known good carb offa' the Rubbermount to "loan" to the IH?

I mean, I'd think it'd be nice to rule out one component while shaking down a new bike...
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