Question about 2000 Harley Davidson FLHR-FLHRI Road king
Hi 66fabman, high idle on fuel injected models can be casued by a faulty IAC valve located on the top front of the induction module. It has either failed electronically and needs to be replaced or mechanically getting gummed by contaminated engine blow by. You can try cleaning the unit by removing the air cleaner and backing plate, unplug, unscrew and remove the IAC. Using carb cleaner and " LOW " volume compressed air to clean the metal pintle and shaft that is spring loaded and has an operating length of just under 1 inch. Aventurous souls who did not heed the low air warning have launched pintle and spring into parts unknown. There is no guarantee this will work but worth a try since a new one is $50.00 Good luck and have nice day.
Posted on Jun 21, 2015
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Posted on Jan 02, 2017
One item you might want to check is for a vacuum leak. All the rubber plugs and stuff on the module sometimes wear and leak. If the change was sudden or recent this might also be the culprit.
The IAC motor is not that difficult or expensive to replace if you feel you need to do that just let us know. Hope this helps,
Posted on Aug 21, 2009
Is it fuel injected or carbureted? If the bike is fuel injected it will idle fast until the engine warms up...if it continues to idle fast after about 10-15 seconds it could have a faulty sensor.
If carbureted, after you push the choke in does it still idle fast? If so, there is an idle adjust screw on the top of the carburetor just behind the air cleaner.
Do you have a tach on the bike? If you do, then the normal warmed-up idle should be 1000rpm.
Posted on Sep 10, 2009
SOURCE: my 2000 roadking classic at
If the engine is equipped with a carburetor, it sounds like the accelerator pump is not working. Take your air filter off and with the engine OFF, crank the throttle wide open. You should see a squirt of fuel squirt into the carb from the brass thing in the mouth of the carb. If not, the accelerator pump is not working. It probably needs a new diaphragm in it.
To put a new diaphragm in the carb, remove the air filter backing plate and take the four screws out that holds the float bowl on. With the float bowl off the carb, turn it upside down. Take out the remaining two screws in the accelerator pump plate. You'll see the diaphragm and the return spring under the plate. Put the new diaphragm on position with the sping on top and reinstall the plate. Put the float bowl back on the carb and reinstall the air cleaner backing plate. Make sure the throttle works as it should and start the engine. It should rev cleanly now.
Posted on Apr 30, 2011
SOURCE: im new in the harley
Has this motorcycle been modified, the specs for a 2002 FLHRCI claim that it is naturally aspirated
(has a carb not efi)? If it has not been modified then my cross reference guide says the following are a replacements for the OEM part: accel Y2418P, Champion RA8HC, NGK 3932, NGK 6046, or HD 6R12... If the Engine has been modified, or replaced then these OEM plugs may not apply...
Posted on Aug 10, 2011
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