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Turns over but will not start

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Old Jun 7th, 2011, 08:02 PM     #1
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Turns over but will not start

My son ran my 2000 Ultra Glide out of gas (completely). After putting fresh gas in tank, I tried starting the bike several times. It turns over and sometimes backfires, but will not start. I sthere air in the injectors or something? HELP!

Thanks, Patrick.
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Old Jun 7th, 2011, 09:09 PM     #2
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Re: Turns over but will not start

The fuel pump will purge any air that could be in the injectors so I doubt that's the case. Possible the pump overheated and burnt out with no fuel in the tank if the ignition was on for any period of time.
Can you hear the pump run after you filled it up and turned on the ignition?
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Old Jun 10th, 2011, 04:37 PM     #3
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Re: Turns over but will not start

Yes, I can hear the pump running when I turn the key on.
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Old Jun 10th, 2011, 04:49 PM     #4
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Re: Turns over but will not start

Quote: Originally Posted by Sea Fox View Post
Yes, I can hear the pump running when I turn the key on.
Harley Davidson Community (00-03 HD Codes And Activation) have you checked for any codes yet?
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Old Jun 10th, 2011, 05:31 PM     #5
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Re: Turns over but will not start

Quote: Originally Posted by Sea Fox View Post
Yes, I can hear the pump running when I turn the key on.
Does it stop after awhile? or does it keep running?

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Old Jun 11th, 2011, 11:17 AM     #6
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Re: Turns over but will not start

The lack of follow up suggests you got it running. However, as a suggestion, any time I open the fuel system on a car (usually replacing the fuel filter) I cycle the ignition on and off at least 3 times to try to prime the fuel system as fully as possible before starting the engine. So far, I have always gotten a smooth start and no missing. Perhaps that technique might help clear an air lock on your scooter.
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Old Jun 14th, 2011, 02:39 PM     #7
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Re: Turns over but will not start

It runs for about 2 seconds and then stops.
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Old Jun 14th, 2011, 02:41 PM     #8
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Re: Turns over but will not start

I sprayed starter fluid in the air intake, but that did not help. I checked both plugs and they show spark. Turns over, backfires and still does not start.
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Old Jun 14th, 2011, 02:41 PM     #9
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Re: Turns over but will not start

Do you hear the pump recycling after it stops if you were to let it rest and turn the ignition back on again?

You may want to check the fuel pressure in the system.
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Old Jun 15th, 2011, 01:34 PM     #10
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Re: Turns over but will not start

It might be a clogged fuel filter if the tank was run dry. Sometimes there is sediment at the bottom. Just a thought.
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