Question about 2003 Harley Davidson FLSTC Heritage Classic
There could actually be a couple of different solutions to your problem. The first thing i would check is the battery. If your battery is starting to go bad, the bike will idle high to try to charge it.
The other issue could be Throttle Potentiometer: A potentiometer is similar to a rheostat. Think 'twist to make louder' volume control on a radio--that is a potentiometer. On an engine, it can send signal to computer/motronic to tell how much you have twisted the throttle on/off. Computer can then make adjustments to other systems as it thinks is needed. Unless you have been messing with the idle controls, 1 of these issues is your problem.
also try this:
1. Turn the key on but do not start the bike.
2. Fully twist the throttle open and closed two times.
3. Then start the bike
Posted on Aug 08, 2010
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Posted on Jan 02, 2017
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