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What causes backfire?

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Old Oct 13, 2007 | 06:25 PM
  #1  
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Default What causes backfire?

I was riding today, and came to a stop and it idled a little and then backfired and quit. Let it sit for a couple seconds. Started it up and it ran fine all the way home. Which was like half a mile.

Anyways, what could cause this? Its brand new with maybe 2 hours on it.
 
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Old Oct 13, 2007 | 07:40 PM
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Default What causes backfire?

could it be running too lean?
 
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Old Oct 13, 2007 | 08:55 PM
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Default What causes backfire?

it could be the opposite as its building extra gas then igniting it at once you. it would do it when your stopping. check the plug to see if its burning dark or very light. maybe sure the air intake isnt blocked in anyway as well. just a idear.
 
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Old Oct 13, 2007 | 09:06 PM
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Default What causes backfire?

it would also die sometimes at stops.
 
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Old Oct 14, 2007 | 10:57 AM
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Default What causes backfire?

Check the throttle cable adjustment, if it's loose the ETC will cause the stalling/backfire....
 
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Old Oct 14, 2007 | 09:19 PM
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Default What causes backfire?

well its under warrenty, so ill just call the dealership and see what they say.
 
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Old Oct 15, 2007 | 08:12 PM
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Default What causes backfire?

i have be reading a lot about a PILOT JET? could this be clogged?
 
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Old Oct 15, 2007 | 09:06 PM
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Default What causes backfire?

<div class="FTQUOTE"><begin quote>Originally posted by: powerslider

Check the throttle cable adjustment, if it's loose the ETC will cause the stalling/backfire....</end quote></div>

Seriously check this first. If it's out of adjustment it can do what you are stating. Make sure it only has 1/16 in play at the end of the throttle lever. If not, adjust it and I bet your problem will be cured.
 
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Old Oct 16, 2007 | 08:21 PM
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Default What causes backfire?

well i got a call from the dealership today. and it WAS the throttle adjustment. he then explained about the ETC and backfiring. Thanks guys!
 
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Old Oct 16, 2007 | 09:13 PM
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Default What causes backfire?

glad it was a easy fix. the etc can be tricky and a pain.
 
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