Question about Harley Davidson FLHRCI Road King Classic Motorcycles

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Timing on1991 road king classic

I was riding my bike and it started cutting out bad then at home wouldnt hardly run it was popping and backfiring real bad i changed plugs same thing could timing changed?i havent had a harley in 25 years sots time to learn new stuff lol i dont even know how to time these new bikes give me a low down real quick please thanks lucky

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  • gary evanger
    gary evanger Jan 02, 2014

    now the bike wont start at all just pops etc

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  • Contributor
  • 54 Answers

Check for a spark and fuel.

Posted on Jan 02, 2014

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: 2002 buell blast is running rough - missing - backfiring

Wow, my 2002 blast is doing the same thing, or at least it was untill it blew a hole through the exhaust and quit running all together. Time for a sportster.

Posted on Sep 05, 2010

joecoolvette
  • 5660 Answers

SOURCE: when riding 2005 fuel injected harley road king,

Sounds like the intake manifold is leaking. The area where the leak usually happens, are those two rubber sleeves that go from the heads, (Cylinder heads) to the intake. Sometimes the clamp/s loosen up. Sometimes these rubber sleeves deteriorate, and cracks form.

This makes the engine backfire, pop, and idle fast.

The added air at the wrong time cause a backfire, when you let off the throttle. The added air causes the engine to pop, because the exhaust valve has sucked up some cold air.
The engine idles fast, because more air is being introduced, and not metered by the injection system.

(The exhaust valve thing. Exhaust valves are supposed to open, and let exhaust out right? Well there is a thing called Valve Overlap.
The Exhaust valve hasn't closed all the way yet, and the Intake valve is opening.
The 4 stroke engine, (Of which a Harley is), has these four strokes.
1.Intake Stroke. Fuel/air is sucked in.
2.Compression Stroke. The piston comes up and squeezes the fuel/air mixture.
3.Combustion Stroke. The spark plug lights the fuel/air mixture off.
4.Exhaust Stroke. The spent gases are expelled out.

Your Road King has one camshaft. There are four cam lobes on it.
Intake, Exhaust, Intake, Exhaust.

If you had the camshaft in your hand, and had the gear end facing you, look down the camshaft. You will see those egg shaped cam lobes. You will notice that No.1 cylinder Intake lobe is facing to the left.
No.1 Exhaust is facing to the right.

If you put a degree wheel on the gear end of the camshaft, and had the No.1 Exhaust lobe ramp nose facing straight up, you would see that it's about 110 degrees, before the Intake lobe ramp at .050 lift, comes into play. (The roller, of your roller lifter has raised the Exhaust valve up .050 inch) There is about 55 degrees before the Exhaust valve hasn't quite shut.
This is okay for normal running. Introduce a vacuum leak, and the surge of extra cold air, makes it pop.

Solution? I suggest checking to see if the clamps on those rubber sleeves are loose. You can also spray WD-40 towards the ends of each rubber sleeve, when the engine is idling, and see if it speeds up. Means, one or more, of those rubber sleeves has deteriorated.

Posted on Apr 25, 2009

  • 221 Answers

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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1 Answer

Bike died going 75 mph and will not start. Has not fire


The owners manual for my 2008 Road King Classic says to down shift from 6th to 5th at about 60 MPH, not 75 MPH.

Jul 05, 2012 | 2008 Harley Davidson FLHRC Road King...

1 Answer

2002 road king classic keeps stalling when i come to a stop and there is some backfire as well . when i first start up the bike it will idle .


If your bike is fuel injected, there is nothing you can do. You must take it to a shop and let them set the idle speed. If it's equipped with a carb, remove the air cleaner cover and look at the square top on the carb. Just to the right of that cover is a screw, the throttle stop screw. Turn this screw clockwise to increase the idle speed. It should idle at about 1000 RPM.

Good Luck
Steve

Apr 07, 2011 | 2002 Harley Davidson FLHRCI Road King...

1 Answer

I have a 99 road king with a 95 CI new engine. Yesterday after riding for about 80 miles, the bike stopped running. I left from a signal, shifted into 2nd and the engine backfired and shut off. After...


It sounds like a fuel flow restriction somewhere. Sure, it'll start every time and idle for a while but take it down the road a bit. If it quits, I'd suspect that for some reason it's not getting fuel to the engine from the tank. Loosen the fuel cap, the cap vent may be bad. The vented cap the right side tank cap. If it's fuel injected, it could be the fuel pump or something. It sounds like a fuel problem to me.

Good Luck
Steve

Jan 16, 2011 | Harley Davidson FLHR-FLHRI Road king...

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01 ROAD KING ,BIKE STARTS RUNS FOR ABOUT A MILE CUTS OUT AND WONT START FOR QUITE AWHILE REPLACED CRANK SENSOR AND STILL THE SAME PROBLEM.


Loosen the fuel cap and take it for a ride. Don't take the cap off, just loosen it. You may have a bad vent in the fuel cap allowing a vacuum to build up in the tank.

Good Luck
steve

Sep 22, 2010 | 2001 Harley Davidson FLHRCI Road King...

1 Answer

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

Apr 11, 2010 | 2003 Harley Davidson FLHRCI Road King...

3 Answers

2001 Road King Classic EFI model sputters on hot days


Oil has nothing to do with it. That guy must sell ams oil or something..anyway its your temp sensor on your bike. change it out. You guys running injected correct?

May 18, 2009 | 2000 Harley Davidson FLHR-FLHRI Road king

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