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Old Jul 15, 2012 | 06:33 PM
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Guisepie's Avatar
Guisepie
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From: Nyc
Default Running rough
Hi I'm hoping someone can help my 97 custom sportster just started running real bad and back fire on deceleration I thought it was bad gas I changed that front cylinder seems dead at idle I swaped plugs it stayed the same if anyone has expierenced this type of prob and has an answer I would much appreciate it thanks
 
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Old Jul 16, 2012 | 05:18 PM
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Bad plug wire on front cylinder? That might explain the backfire on deceleration too. Maybe switch wires and see if it makes rear one go out.

John
 
Last edited by John Harper; Jul 16, 2012 at 05:21 PM.
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Old Jul 16, 2012 | 05:21 PM
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Did you check to see if the plugs are getting spark?
 
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Old Jul 26, 2012 | 05:57 PM
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There is spark at both plugs
 
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