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Not getting a spark maybe? Help!

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  #1  
Old 08-29-2010 | 11:12 AM
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Default Not getting a spark maybe? Help!

I just bought a 06 night train a couple weeks ago with 10k on it. When I bought it the previous owner said, "starts right up every time." Which was true while it was cool. As I have rode, I realized that it does cold, but after riding for a while and trying to start it again hot, it hesitates a little, but usually fires up after I give it a little gas. Would this be a spark issue? I'm not sure because of the fact that when I give it gas it fires. Any thoughts?

It does turn over, so I don't think its the starter.
 
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Old 08-29-2010 | 12:04 PM
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Define "hesitates a lil".

Cranks but not fire right away?
Hesitates before cranking?
 
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Old 08-29-2010 | 12:07 PM
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Cranks, but doesn't fire right away. I turns over like it is trying to start, but no fire. Think I might run to the harley story and grab new plugs. An easy and cheap place to start. Odd though that its only when its been running for a while.
 
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Old 08-29-2010 | 12:07 PM
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Sounds like a temp related issue. Maybe the electronci timing is not quite insync at higher temperatures. May need a good diagnostic test ran on it. Good Luck.
 
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Old 08-29-2010 | 12:12 PM
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Lose the mind set ---plugs are cheap---I will replace anyway. Look at the plugs. Antisieze the plugs before reinstalling. Probably not the plugs. I doubt if it is ignition related but more likely fuel related. A good diagonostic scan will point the mechanic in the right direction but so/so problems are harder to fix.
 
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Old 08-29-2010 | 12:48 PM
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Do you run quality fuel?

Aw crap, change the plugs before wasting any more time guessing.
 
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Old 08-29-2010 | 01:42 PM
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I have seen that complaint posted a few times on twincams. Seems if you stop to get gas, takes a few rotations of the starter to get it going...if you let it cool down a few more minutes...starts right up...sounds kinda like vapor lock.
 
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Old 08-29-2010 | 01:52 PM
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When you change the plugs check the color of the old ones. If they're on the white side it's running lean so it could be a fuel problem. It may need a tuner if it doesn't have one.
 
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Old 08-29-2010 | 02:42 PM
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I use premium grade fuel. I'm about to head to the store, change them later this afternoon. I'll let yall know what I find. Thanks for the responses. It really helps.

About the tuner, I am thinking I might do that regardless, think the idling RPM's might be a little high and running a little rich as well.
 
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Old 08-29-2010 | 03:09 PM
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Plug ends are not white, actually a little burnt looking
 


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