Question about 2001 Harley Davidson FXDL Dyna Low Rider
I have a 97 fxd, when started it runs great. Once it warms up it starts running like ****, spitting, sputtering, and backfireing. I have replaced spark plugs, wire, ignition coil, module, and cam sensor.
Since you have thrown the entire ignition system at it, let's think about fuel. If you were running out of gas it would act as you described. I would start by removing the float bowl. Be careful not to spill any gas because we want to look at the level. It should be over half full. Check the float movement. You should be able to push it up without resistance. Looking from the bottom remove the phillips screw that retains the float axle and the float and needle valve should fall out. If the needle valve has three sides or if the rubber tip is worn, replace it. The 3 sided valves have a tendancy to stick closed and all dealer stock should be the 4 sided version by now. After you re-install the float, leave the bowl off and follow the small vacuum hose from the petcock to the carb. Pull it off at the carb end. Look to make sure it isn't damaged. **** lightly (sorry) or use a vacuum pump on the hose. With the petcock on and gas in the tank, a healthy stream of fuel should pour from the needle valve. If not, the petcock diapragm is shot. If none of this helps, take it for a ride and when it acts up, crack the fuel cap loose and if it takes off the vent in the cap is malfunctioning.
Posted on Jan 05, 2009
To me it seem more like a rich condition not a lean like you would get from a rubber or gasket before you buy the rubbers or gaskets i would pull the carb apart, take the slide out and look down where the needle goes into the jet see if the the hole is oval, also make sure the choke is not stuck open
Posted on Dec 24, 2008
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Posted on Jan 02, 2017
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