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Backfires and will not start 2009 softail

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Old Feb 17, 2013 | 02:14 PM
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Default Backfires and will not start 2009 softail

Hey guys, I am new to this site but a few buddies of mine recommended it to get some solid advice on how to unscrew my 2009 Softail. Bottom line is the bike has been on the lift for two months. It turns over but will not start. About every third revolution I get a large backfire from the front head exhaust pipe. I have checked spark. Reflashed the EFI. confirmed the quick disconnect is locked in. Ensured the fuel filter canister is not leaking inside the tank. Pulled the plugs and they are at least getting some fuel. I am stumped at this point. It is a 2009 Crossbones with pipes and high flow air filter. Prior to this, the bike ran fine, would very rarely get a backfire. Pulled it up on the lift for a good cleaning and service and there it sits. Any advice would be apreciated before sacrifice my pride and trailer it to the HD wrenches....
 
Old Feb 17, 2013 | 03:16 PM
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Welcome!
 
Old Feb 17, 2013 | 03:21 PM
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Have you checked for codes? Do a search here if you don't know how.
I have a friend that has a 2009 softail and he had similiar problems and it was his TPI sensor...I think it is in the rear fender...
 
Old Feb 17, 2013 | 03:23 PM
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You mention it ran fine "prior to this". What changed?
 
Old Feb 17, 2013 | 03:28 PM
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Welcome to the HD Forums from Texas.
 
Old Feb 17, 2013 | 03:34 PM
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How did you re-flash the EFI. Sounds like a troll statement. What did a good cleaning and service entail? I would not look for a TPI (? threads per inch?) sensor...in the rear fender... The throttle position sensor is on left side of throttle body and is a easy check with an ohm meter.
 

Last edited by Jackie Paper; Feb 17, 2013 at 03:52 PM.
Old Feb 17, 2013 | 04:04 PM
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A big welcome to you from sunny Southern California. Glad to have you on board.
 
Old Feb 17, 2013 | 04:35 PM
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Old Feb 17, 2013 | 04:36 PM
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Old Feb 17, 2013 | 08:56 PM
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