Question about 2004 Harley Davidson FLSTF - FLSTFI Fat Boy
Fresh gas, new sparkplugs but not harley davidson, cranks over and will start but must throttle it to keep it running at idle for longer then normal startup time. then on road bike engine needs more throttling then normal to maintain speed, engine misses. When come to a stop engine dies and have to restart. Could the problem be the ignition module?
Is this a "nose cone" harley?19 70s to 90s? Check centrifical advance unit,located behind breaker plate where points or ignition module are mounted.when they sit for awhile it can rust and stick,resulting in retarded timing.
Posted on Jan 22, 2013
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Posted on Jan 02, 2017
if it is open loop ( O2 sensors) check the sensor condotion, connections etc.
Reload the files onto the Power Commander, insure they are the exact files for your ride, the wrong files can affect operation and gum up the O2 sensors.
Posted on Apr 13, 2009
not running for a year! You have a varnish buildup in the low end circuit of the carb. You will need to remove the carb and do a full teardown of the carb to properly rectify this problem. SOMETIMES we are able to free up the passages by putting SEA FOAM cleaner in the tank , fill her up with fresh fuel and ride through the tank and it will clear up. SEA FOAM can be purchased at an auto parts store and is sometimes very effective. 1/4 cup to full tank fuel.
Posted on Jul 14, 2009
SOURCE: High Idle On Start-up.
Most fuel injected motorcycles do start up in a "fast idle" mode. Although I don't know much about fuel injection on Harleys (H-D will not tell you much about it unles you are one of their technicians), I don't think the system is equipped with an engine temp sensor. Since the crank case sensor get it's pulses from pockets cut into the outer edge of the left side flywheel half, the sensor will have oil on it.
Posted on Sep 24, 2009
SOURCE: Harley won't start.
A harley AGM battery are usaully good for three to five years the best thing to do is have the battery load tested.Now as far as your problem now depending on the batterys state of charge the solenoid will click or not.Because you store it alot you should keep a trickle charger on the battery
Posted on Apr 11, 2010
Testimonial: "Thanks for the advice, gives me a direction to pursue. Will have battery tested and hopefully that is all it is."
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