Ignition/Tuner/ECM/Fuel Injection Need advice on ignition issues? Questions about a tuner? Have questions about a EFI calibration or Fuel Injection? Tips on Engine Diagnostics, how to get codes, and what they mean. Find your answers here.

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Old Sep 25, 2010 | 10:46 AM
  #1  
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Default starting problem

Hey im new to harley i just got a 2008 sportster 1200 nightster and have deided to get rid of the sport bikes and get a harley well i just got it bought it used and runs great but i was out on it last night and got to a buddys house and went to start it and it just clicked 1 time and lost fire to everything so i turned the switch off and turned it back on and same thing well i got it home and decided to work on it and try to fix it now im getting fire in the acc position but not in the run position so i made a jumper wire from the run wire to the battery and it light everything up fuel pump primes and all but still just clicks any help would be appreciated thanks
 
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Old Sep 26, 2010 | 03:36 AM
  #2  
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sound like your starter relay (main relay) is dead. $20 and it should run
 
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Old Sep 27, 2010 | 09:03 PM
  #3  
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no luck just got this bike rode it 10 miles and already messed up not looking good for harley
 
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Old Sep 28, 2010 | 02:11 PM
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Put your battery on a load tester.Sometimes it will Show adequate voltage but when you go to start bike there is a drastic voltage drop. Also, check your sensors.I would start with the crank pos. sensor.
 
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Old Sep 28, 2010 | 03:05 PM
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Check connection from battery at the starter. The same thing happened to me once. There was a little corrosion under the nut. Cleaned it and everything was good.
 
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Old Sep 28, 2010 | 09:38 PM
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I had the same problem a few weeks ago. A starter relay was the suggestion of someone on the web. He told me to pull the relays and check how they look. I did that, they looked OK, so I just charged the battery and cleaned the cable ends to see what would happen.

It started OK a couple of times, then the problem reappeared. I pulled the battery and had it checked. The battery was bad, I got a new one and the problem seems to be solved.

Ron
 

Last edited by rjg883c; Sep 28, 2010 at 09:42 PM.
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