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When i start the 06 harley fxdi it dies very shortly. i can keep it running with the throttle open or carb cleaner. If i let idle on its on, it will backfire than cut off, can anyone give me some assistance
Re: When i start the 06 harley fxdi it dies very shortly....
If the bike is fuel injected (FXDI), you need to take it back to the dealer and have them take a look at it. There is no "user adjustable" settings on the bike.
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Your pilot jet in the carb is plugged up or to small you will have to pull the carb out and clean it if you have a wire brush you can use 1 of the needles off it that will fit in the tiny hole in the pilot jet push it through and then spay carb cleaner through it and the main jet put back together and it should run fine
Your carburetor has multipule dirty passages. Its getting the right fuel air mixture at Idle but when you open it up it doesn't, which is why it dies. A through soaking of the carb in carb cleaner sould help or simply pull it off and have a shop clean it.
I would start with cleaning the throttle bore and plate. Then clean the Idle Air Control valve, IAC, as this is the device that controls idle speed. Use a can of spray carb cleaner and an old toothbrush. Trouble with the IAC would make sense if you can keep the engine going by holding down the gas pedal a bit.
Use the carb cleaner to check for vacuum leaks at hose connections and elbows. run engine and spray short bursts at hoses and listen for idle speed changes.
And lastly if problem is still there check MAP sensor.
Sounds like the carbs idle circuit are clogged from sitting or bad fuel . Try Some carb cleaner in it an see what it does after a tank fuel . Or take to a Harley shop to let a tech check the carbs an maybe give it a tune-up.
Ok, Never use the enricher anymore than you have to. It's way to rich on every CV carb I've ever seen. It will foul your plugs. I start my bike with the enricher on but as soon as I can keep the bike running at a fast idle with the throttle tension screw on the bottom of the throttle grip, I set the screw to hold the idle at about 1500 RPM or so until the engine is completely warm on the top end. When the rocker boxes start to feel a bit warm, I'm ready.
Now, when Harley came out with the Twin Cam, I quit working on them. I work only on the older models, Evo powered and older. The reason is that Harley went to electronic engine control modules. This sounds a lot like what you've got.
To cure your idles problems, once you get your engine to full operating temp, set the idle speed using the throttle stop screw at the carb. Take the air cleaner outer cover off and you should be able to see the screw at the top front of the carb. Clockwise speeds the idle up. Now, the engine is not going to idle correctly until it is completely warmed up. That usually takes at least five miles of riding or so. Until then, you must keep the idle set with the throttle grip.
The alternative to this is a fuel injection system. And, you only think you have problems now. Read some of the problems those people have on this forum. I'll keep my '94 FXDWG.
Maybe you should clean the throttle body with carb cleaner. Take off the air intake hose and spray the cleaner while the engine is idling. You will need to keep the truck running while doing so, this will clean the throttle plate and the idle air control valve.
do you have a check engine light on? if not try cleaning the throttle body follow the tube from the air cleaner box to the throttle take hose off open throttle plate and clean with carb cleaner and a tooth brush and a rag car will run rough after you do this may have to hold throttle open to start
Possible cause is a crack in the fuel filter shell which is installed inside the fuel tank. Harley has a recall for affected models. Post your VIN number or go to your local dealer and ask him is there a recall for your bike. All he will need is the VIN number and any recalls will be done under warranty. By the way, not sure of the year of your bike but it may still be under warranty anyway. Other than that there could be a TP sensor fault.
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