Question about Harley Davidson FLHTCUI Electra Glide Ultra Classic Motorcycles
Hi Bjohnson16, popping, coughing, spitting, or backfiring through the carburator or induction module can be caused by air getting sucked in combustion chamber do bad intake seals leaking. Leaking exhaust gaskets can also be suspect. Remove air cleaner and backing plate, while engine is idling spray WD-40 or Brake Kleen around intake manifold to head area, if RPM's increase you have an intake leak and seals need to be replaced, also spark plugs will be burning whiter than normal. Good luck
Posted on Jun 21, 2015
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Posted on Jan 02, 2017
SOURCE: idle problem when warmed up
On the carburetor, there is an idle knob. Make sure it is not set too high. This is normal during a cold start so make sure to adjust the idle knob back at 1,100 RPM after your engine is warmed up.
Also, make sure the choke system is clean and is free. Throttle cable should have an allowance of just about .8cm.
The engine idle may also be controlled with the thermostat connected to the grill fan. it will normally idle up to about 2,000 rpm when it senses that the engine is too hot but not 4,000.00 make sure this system is working well.
let me know if this helps
Posted on Mar 29, 2009
does this happen all the time or just sometimes?if it happens all the time you need t change your spark plug sometimes you probally have water in the gas drain the carb bowl the little flat head brass screw on the bottom of the bowl make sure your gas is on to flush it out buy some stabil ethonal treatment and run it every tank fuel good luck
Posted on Jun 25, 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
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