2004 FXSTDI softail duce. how do I Lower IDLE?

Duplicate question already answered

need to rejet carb

plugs worn

Mine does that too. If you lower the idle it will then be too slow when the engine is cool. You might be able to lower the idle just a bit but don\'t go too far. Slow idle is hard on the connecting rods. Look at the carburetor. where the cables come down to the carb there is a small screw that you can turn to make adjustments. I would only turn in COUNTER clockwise 1/2 turn to begin with. If it idles too slow when cool you could always pull the choke out a bit but that can be a nuisance. Try that to see if it helps.

make sure you have good fuel pressure. Your pump or something else in the fuel system may have failed.

Not unless you have the proper tools to rethread the inside of the new "top" of the tubes. You need to purchase new fork tubes and swap them out on your lower sliders.

Good Luck
Steve

Yes - a ticking noise at idle (and lower engine RPM) is normal for Harleys of any year.

If it's fuel injected, the dealer will have to set the idle speed for you unless you have another type of computer on the bike.

Not that I know of.