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twin cam efi occasional backfireSoftail Models |
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Nov 8th, 2009, 12:05 PM
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#1 |
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New Family
Ride: heritage softail
Join Date: Oct 17th, 2009
Posts: 3
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twin cam efi occasional backfire
Hi all,
My 2002 heritage with twnicam and efi occasionally backfires when I am riding along at a constsant speed. It will occasionally do it under decelleration but mostly whilst riding at a constant speed. Has anyone had similar problems or have any advice on solving it without having to take it to my dealer. |
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Nov 8th, 2009, 12:06 PM
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#2 |
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Moderators
Ride: 09 CVO Ultra Classic
Join Date: May 18th, 2007
Location: The Shires UK
Posts: 8,726
My Mood:
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Re: twin cam efi occasional backfire
what mods if any are done to the bike?
pipes, fueler, intake?
__________________
 Please stop by the "self help section" for maintenance tips, diagnostic codes and much more. >>Self Help Information and Tips<< click me! |
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Nov 8th, 2009, 12:10 PM
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#3 |
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Contributor$
Ride: 2009 Dyna Low
Join Date: Aug 16th, 2009
Posts: 1,073
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Re: twin cam efi occasional backfire
Do you Feel a misfire in the bike when it happens? If it was not for the sound, would it go unnoticed?
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Nov 8th, 2009, 01:04 PM
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#4 |
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New Family
Ride: heritage softail
Join Date: Oct 17th, 2009
Posts: 3
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Re: twin cam efi occasional backfire
Hobbitt, the only mod is a stage one which was done over 3 years ago with no previous problems.
Hoople, Yes you can def feel when it backfires. Thanks for your replies. |
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Nov 8th, 2009, 01:08 PM
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#5 |
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Moderators
Ride: 09 CVO Ultra Classic
Join Date: May 18th, 2007
Location: The Shires UK
Posts: 8,726
My Mood:
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Re: twin cam efi occasional backfire
replace the plugs ensure there gapped correctly, check the HT leads, and coil for starters to ensure they are functioning correctly, also check the reg/rec for correct function and ensure the battery is not faulty and all the grounds are clean and secure
also try running some seafoam or similar fuel treatment to clean the injectors to see if there dirty. see if this helps specially if its only just started.
__________________
Please stop by the "self help section" for maintenance tips, diagnostic codes and much more. >>Self Help Information and Tips<< click me! |
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Nov 8th, 2009, 01:17 PM
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#6 |
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New Family
Ride: heritage softail
Join Date: Oct 17th, 2009
Posts: 3
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Re: twin cam efi occasional backfire
Many thanks Hobbitt, It's gonna be a process of elimination. I'll try all of your suggestions and let you know.
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Nov 8th, 2009, 02:05 PM
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#7 |
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Contributor$
Ride: 2009 Dyna Low
Join Date: Aug 16th, 2009
Posts: 1,073
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Re: twin cam efi occasional backfire
I agree with Hobbit. Sounds like an electrical engine miss, then the unburned fuel kicks off on the way out the pipe.
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