Question about 2000 Harley Davidson FXDX Dyna Super Glide Sport

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Ignition failure Bike starts and runs for approximately 45 seconds and then dies. Loses spark. Key can be turned off and back on and bike will start again and same problem will occur.

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  • Anonymous Mar 16, 2014

    If put in the reference key code the bike will start no problem, however turn ignition of wait 2mins the wont start unless put in code again ?

  • Anonymous Mar 30, 2014

    03 softail deuce (efi), runs fine till come to a stop or downshifting. then it loses power and dies. after turning off ignition and waiting a few it will start right back up. (runs fine on bench too, smooth idle) and my speedometer quit same day. need a starting point!!

  • Anonymous Mar 30, 2014

    Key starts bike but Iights and break Iightswon't work. have to turn key 2 cIicks to Iight up taiI Iight but won't start. (missing Ietter from keyboard so I use I)

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I am not sure how you determined it loses spark, but if you shut off the ignition then turn it on and the engine starts back up I suspect the ignition module is at fault. The hall-effect sensor mounted to the end of the cam sends a yes or no signal to the module. The module uses this digital signal to turn the coil on and off to fire the plugs. The module is "smart" in that if it sees no signal change from the sensor it turns the coil off and leaves it off. If this malfunctions it is possible the module becomes "stupid" and times out with the engine running. When you turn it off and then back on the module reboots and starts looking for the signal again. The sensor is always stupid and does not reboot, just answers yes or no when the ebgine is turning over.

Posted on Dec 25, 2008

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  • 75 Answers

Tight the spark plugs....or the threads of the spark plugs may damaged, so replace the spark plugs

Posted on Dec 03, 2008

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