Question about 2007 Harley Davidson XL 883 Sportster

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I have a 2007 HD XL 883 with fuel injection. On hot days, when I turn on the key, there is a whistling sound that continues even after I start the bike and stops after it runs for about 10 minutes. doesn't effect running, but is VERY annoying. Any thoughts?

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Okay ,when you start the bike, which side the noise comes...
Left side it could be the starter which continues to spin!

Posted on Oct 21, 2013

  • _-__-___-_
    _-__-___-_ Oct 22, 2013

    use a rubber hose to your ear, and learn to find sounds like that, find the exact spot. photo it then ask, that is why using a real mech works best, on this form , our ears and test tube are dead. Most EFI engines have an idle control device, and is called and ISC, if the air hose fell off, it can whistle. so can any vacuum leak,even loose air leaner, note Im guess,ing air/vac leaks other poster guesses, stuck on start (you'd know that fast) so my point, why gues, find it using the rubber tube. use tools, guessing dont work sorry.


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  • Harley Davidson Master
  • 20,706 Answers

Ask your mechanic,
noises are the most complex of all problems
and nobody here can hear them.
my wild useless guess, is air cleaner leaks.
always works.
use a rubber to ear, move hose, find source.
easy peasy.

Posted on Oct 12, 2013


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SOURCE: while riding all lights started to flash engine run erratic bike died of death bike will not start

Start with charging and load testing the battery. Then test the stator, to test the stator on the bottom of the right down tube is the plug that goes from the stator to the voltage regulator. With a multi meter, read the voltage from the stator, I forget the exact values but as you rev the motor the voltage should climb if it dosn't your stator is bad. If the stator is good take a reading again with the motor running at the battery cables, again I forget the exact value but you should have a steady reading at the battery, if it isn't and fluctuates it is bad.

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SOURCE: Engine cuts of after it runs about 3 or 4 min. If

what kind of machine?

Posted on May 08, 2009

  • 1 Answer

SOURCE: My 2007 HD sportster nightster is not starting.

I have had the same problem. Been throught two batteries, new cables,checked the fuses 999 times. It only starts every now and then. You must take a wrench and get the positve cable just right and it will start for a week or so then back to the same thing. You would think after building motors for so long Harley could at least make a bike that starts.

Posted on Nov 19, 2009

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