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Old Sep 2, 2008 | 07:27 PM
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KingCarp99
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Default Just keeps on running

Hi All, my wife's 2003 Hugger engine has a habit of running a few seconds after she turns the key off. She has been using 87 octane gas, and someone mentioned that she should ty hightest. Doesn't seem like that would be the issue to me, but she did try a tankful of 93 octane to no avail. Any thoughts on waht it could be? I am thinking a slight carb adjustment...
 
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Old Sep 2, 2008 | 08:10 PM
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cHarley
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What you have is called dieseling and can be caused by several things. Too much fuel in the combustion chamber when you shut it off is one cause. Another is carbon buildup on the heads. Get a can of Seafoam from an auto parts store. There are directions on the back of the can, but the ones you are looking for call for injecting the seafoam into the air intake with the engine running. Follow that procedure and see if it helps.
 
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Old Sep 2, 2008 | 08:26 PM
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It's the HD Spirit at work my man........
 
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Old Sep 2, 2008 | 08:34 PM
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I'll give that Seafoam a shot and hope the HD spirit works in more mysterious ways, like adding more HP
 
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Old Sep 3, 2008 | 11:50 AM
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From: The Suncoast (FLA)
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Might need to check the timing too. Could be too advance. Makes a motor run hot and exacerbates the dieseling. Check the plugs for an indication. Not sure about your choice of octane. Higher burns slower (if memory serves correctly), and cooler. It will take more than "a tank" to affect it much. Lots of good tuning information at nightrider.com
 
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Old Sep 3, 2008 | 01:09 PM
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JosephGarcia
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From: fegfsg
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you want to pull your carb off and replace the seals to the manifold, its hard to get a perfect seal with the way they are designed and a small nudge will make small leaks which cuase this exact problem

i had to deal with it 3 times and i JUSt replaced the seals again yesterday and now my bike doesnt diesel anymore, I have to check the bolts after every ride for the next few days to make sure nothing comes loose.

you need a 1/2inch box wrench and at least 7inch long 1/4inch bal ended allen wrench, and a pipe wrench to grab the small end of the allen key to turn it.

you might be able to get away with just tightening the bolts, see if they came loose.

also seafoam will remove a lot of carbon from inside the engine, use it every other tank just becuase it helps so much
 
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Old Sep 3, 2008 | 01:17 PM
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Lopoetve
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throw some foam in the tank too to clear out the carb some. Expect smoke.
 
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