Question about Harley Davidson FLHR-FLHRI Road king Motorcycles

4 Answers

I was riding up hill and the rear cylinder stopped firing i ahve changed the wires and even tried switching the plug wires from the coil and still no spark

Posted by on

  • 12 more comments 
  • uncleron_com Apr 03, 2011

    no points

  • uncleron_com Apr 03, 2011

    front cylinder fires fine rear no spark! this is a double fire system so it fires at top dead center and bottom

  • uncleron_com Apr 03, 2011

    1997 HD road king, no spark in rear cylinder and i have changed the plug wires and the plugs i switched the plug wires on the coil and still no spark.

  • uncleron_com Apr 03, 2011

    i have changed the wires and the plugs and it still no spark at the cylinder.

  • uncleron_com Apr 03, 2011

    i did that i also switched the wires on my coil and i still got spark at the front but none in the rear cylinder




    i was riding up hill and the rear cylinder stopped firing i ahve changed
    the wires and even tried switching the plug wires from the coil and
    still no spar

  • uncleron_com Apr 03, 2011

    1997 harley davidson road king. no spark in rear cylinder it is not the wires or the plug

  • uncleron_com Apr 03, 2011

    there are no flippin points!!! dual fire, wasted spark, do those mean anything to you

  • uncleron_com Apr 03, 2011

    one with out a plug the compression sensor will not fire that cylinder so i put a plug in that cylinder and i did the test there is NO SPARK. if you do not understand this kind of engine please do not reply

  • uncleron_com Apr 03, 2011

    i have done all the obvious teat and solutions and i do not have spark in my rear cylinder of my 1997 Harley Davidson Road King

  • uncleron_com Apr 03, 2011

    no it may be a sensor but not points i am not new at this engine thing and i was hoping to find someone with knowlage of this kind of engine not generic trouble shooting

  • uncleron_com Apr 03, 2011

    i will try that

  • uncleron_com Apr 03, 2011

    sorry for not putting more i have a 1997 HD Road KIng with the EVO engine and it does seam to have compresion. it was running great until i started going up the hill (which i dout has anything to do with it) and it started to miss fire i pulled over and checked the engine and it did not appear to be hot . ( i am in oregon it was 52 degrees) i will try what you said unless with the year and make you think something else?

  • uncleron_com Apr 03, 2011

    one more thing i had blew the head gasket on this cylinder and it fix at the local shop, but i removed the engine and replaced the engine i double checked everthing the compression is great in both cylinders i was carefull not to expose the fuel lines or the ports in the tank to any debris but do you think a plugged injector would stop the spark? i believe there are sensors that will stop spark for no compression, no fuel ect...

  • uncleron_com Apr 03, 2011

    there are no points and i found the problem with no help from you. if you don't know keep ypur mouth shut.

×

4 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 10,319 Answers

The signal from the ignition module to operate the cylinders spark is at fault from the description and the details of what you have done to check

Posted on Apr 04, 2011

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,509 Answers

If the one cyclinder is running and the rear is'nt, take the plug wire and connect it to another plug lay the plug on the head and start the bike. If the plug fires the problem is in the compression or fuel. If the bike is fuel injection ( yoiu did'nt list make year and model or engine size or even brand of engine, as they've Made harley davidsons since 1908. ) The fuel injection bikes like the V-Rod have an injector for each cyclinder you can exchange the two injectors ( they will fit and restart and see if the problem moves to the other cylinder. if it does you have a bad injector but the real poroblem sounds like you'ver overheated the reqar cylinder and the compression has gone away ( to check this remove the spark plug and put your finger over the spark plug hole ( make sure the plug wire is out of the way ( it'll shock you)) crank the engine and the cylindser compression should be enough to blow your finger off the hole. if not check the cylinder that does run and compare ( they should be the same) if theirs much difference then that cyclinder needs to be rebuilt.

Posted on Apr 03, 2011

  • John P Schwantes Jr Apr 04, 2011

    #72 the coil only cost 39 bucks at bike bandit and maybe at your dealer too. The plug wires are the same and they rout either way. if you put the front plug wire on the rear cyclinder does the rear cylindder run? if only the front cylinder runs even after switching the wires then the cylinder has fuel or compression problem.

  • John P Schwantes Jr Apr 04, 2011

    Does a plug fire laying on the rear head? use the wire from the front head and lay it on the rear head , does it fire? if it doesn't the head has lost ground and a jumper wire from the ground ( the bolts that hold the coil onto the bike) and the cylinder head ( any bolt that screws into the cylinder head) put a wire to connect them and your good to go. Seems like all that bolted together would make a connection but maytimes they don't. Both plug wires fire at the same time so it doesn't matter which cylinder the wire is connected to and both wires are the same part and can be interchanged. if one good wire doesnt fire no matter what head it's on the coil is bad.

×

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 11,800 Answers

The ignition is generated simultaneously in both cylinders: if you get it to a cylinder it means that the coil and the electronics pack is operational = the defect is located after them.
So replace the sparkplug - it might be shorted. If you still don't get spark then the spark wire for the rear one is interrupted - replace it.

Posted on Apr 03, 2011

  • Azrael SRL Apr 03, 2011

    Simple test to see if the spark is indeed missing: take out the sparkplug, attach it to the cylinder wire a copper wire and turn the engine: the spark should be clearly visible. If it doesn't then check the coil by comparing the resistance to the other cylinder output: you might get an interruption inside the coil, only to that output (weird, but it happens sometimes) . In that case you will have to replace the coil.

×

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 2,427 Answers

Check the points on the distributor, You might need to change them

Posted on Apr 03, 2011

  • 3 more comments 
  • Rishi Roshan Ali Apr 03, 2011

    SORRY!!!! I misread the post, you have a bike not a car..

    determine if the engine has points or electronic ignition, i think yours is points,, Change the points..

  • Rishi Roshan Ali Apr 03, 2011

    CLICK these links FOR HELP IN CHANGING THE POINTs

    FOR POINTShttp://www.dansmc.com/bat_coil_ign.htm

    MAGNETOhttp://www.dansmc.com/magneto1.htm

    ELETRONIC http://www.dansmc.com/cdiignition.htm

    no matter which ignition system you have your problem is coming from the points.

  • Rishi Roshan Ali Apr 03, 2011

    if the rear cylinder point here it meets to fire is bad then it will only fire at the top. check the points.

  • Rishi Roshan Ali Apr 03, 2011

    remove the plugs, hold them close to the body see if the plus spark now ??, ehere the plugs screw in that functions as the ground, See it its cracked , clean if and check if the plug has oil on it.

  • Rishi Roshan Ali Apr 03, 2011

    http://www.dansmc.com/sourcecoil_trigger... ,,,, thats what you have right ??

    when it turns the piece that makes contact to send the spark are called POINTS.

×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Replaced coils, wires and plugs, condensers still not firing number 5 cylinder. Even switched coil packs still no fire.all other cylinders firing.


Broken wires , break close to the back of the plug. If the wires are good. Check compression for that cylinder.

Sep 07, 2015 | Cars & Trucks

1 Answer

Jd lawn mower was only firing on 1 side coil and i changed coil so why is it still not firing


You only have one magneto on the flywheel, this is how any flywheel is designed because both cylinders can't fire at the same time, so why have two magnetos to fire one coil? Anyways, the magnetos on flywheels from my experience hardly if EVER go bad, and coils today have so many capacitors and resistors and diodes inside that even the slightest amount of heat soak from a poorly maintained engine can fry the circuitry and fault a coil in a flash. If you replaced te coil and it won't work, try to swap the coils around and see if the one you know works won't fire on that non-working cylinder, that way you can be sure the new coil is not defective, which I've seen many times as well. When it's running, do you pull the plug off the dead cylinder and see if it fires, then repeat the procedure on the live cylinder with the dead coil installed on the plug? Will it fire at all? Try to disconnect the kill wire from each coil, then start the engine and see if both cylinders fire now. I have seen some engines, as an example some briggs vanguard v-twins that have a diode right in the middle of the kill switch wire. I don't know why it's there, probably to deal with spikes in current or something, I'm not that great with electrical I just know how a simple ignition system works and I know if one coil fires that plug, the other one should too. As I said, things from china areive defective all the time, it wouldn't surprise me if that coil is defective or if it runs with the kill wire disconnected from the coils, then there may be a diode blown in the line or you have a chafed area of insulation that's grounding to the book somehow. Pull the kill wire and fire it up, then swap coils, you'll be able to tell what's wrong once you rule out one or the other, it's just a simple process of elimination for a simple problem once it's explained to you. I'm sure you'll figure it out and be back running in no time I you attempt my suggestions!

Jul 08, 2014 | Husqvarna Lawn Tractor 48" Deck, 23 Hp,...

3 Answers

No spark to rear cylinders runs good and then runs on one cylinder 1986 honda shadow 1100


try switching the position of the two coils, the plug wires will unscrew off of the coils and that way you dont have to pull the spark plug wires too,(be sure and change the 2 wire couplers too) if your front cylinder stops firing you know its the coil, if the back cylinder still doesn't fire then your coil is good and you either have a bad #2 spark unit or a bad crank pulse generator.

Aug 05, 2011 | 1998 Honda VT 1100 C Shadow Spirit

3 Answers

Yes i have a 96 chevy lumina i changed the plugs and i think i may have switch the wires but dont know where they go directly


From standing in front of car and facing engine:

3.1L and 3.4L OHV V-6: The cylinder location is from left to right (rear cylinders) 1,3,5
(front cylinders)2,4,6

The coil terminals from left to right: 5,2,3,6,4,1
Firing order 1,2,3,4,5,6

3.4L DOHC V-6: The cylinder location is from left to right (rear) 1,3,5 (front) 2,4,6
The coil terminals are from front to rear 5,2,3,6,4,1
The firing order 1,2,3,4,5,6

3.8L V-6 cylinders left to right (rear)2,4,6 (front) 1,3,5
coil terminals front to rear 1,4,5,2,3,6
firing order 1,6,5,4,3,2

Feb 08, 2011 | Chevrolet Lumina Cars & Trucks

2 Answers

79 harley ironhead 1000cc xlh no spark from coil coil is good and im geting power to both sides of coil


It sounds like your sensor in the timer cavity on the right side of the engine is bad. Disconnect the blue wire from the coil. Take a spark plug out of the engine, put it back in the spark plug wire, and lay it on the head. Turn the switch on and momentarily touch the blue wire to the coil. When you take the wire off of the coil, you should see a spark at the plug. The purpose of the sensor in the timer cavity is to stop the flow of current in the coil and initiate a spark.

Good Luck
STeve

Sep 21, 2010 | 1979 Harley Davidson XLH 1000 Sportster

1 Answer

1982 GS850 Missing and Hesitation


fuel flow to cold pipe cylinder may be stopped with trash or sticky float.Resistor in plug wire for the one not firing could be bad. Try changing coil from one that is firing to the one thats not,see if that pipe gets hot or does the same thing still happen. coil ,plug wire, or fuel would be my primary focus.

Apr 20, 2010 | 1982 Suzuki GS 650 GT

1 Answer

I have a 1990 fxr with a single fire ignition, cam and s&s carb. I am not getting the rear cylinder to fire. I just cahnged the coil but no change. I have compression out the exhaust pipe for the rear...


With a single fire ignition, you cannot swap the wires. A dual fire ignition, yes, but not a single fire. You need two things to get the cylinders to fire, spark and compression. Take the plugs out of both cylinders. Run a compression test on the rear cylinder. You need at least 100 PSI to get the cylinder to fire like it should.

Next, put your plugs in the wires, (they should already be in the wiresand grounded) and spin the engine over. Watch for the plugs to spark,especially the rear plug. If you have spark and compression it should run on the rear cylinder. If it still doesn't run, either something is way wrong with the ignition or a very bad air leak on the intake.

If you don't have spark at the rear plug, you need to check the coil. A single fire coil is different from a dual fire coil. The primary wiring is different as well. If you've got the primary wired incorrectly, you won't get spark at the rear plug. Go to the website of the manufacturer of your ignition system. Most of them have downloadable installation instructions. Check your primary wiring.

Oct 02, 2009 | Harley Davidson FXDL Dyna Low Rider...

2 Answers

I have 02 L300 3.0 with cylinder1 miss fire.I


Swap the coil pack to another cylinder if it is individual. If not, you should be able to pull the wire away from the plug and hear it fire. If not, you have a bad coil. If so, I would look at doing a compression test and possibly a leak down test.

Jun 10, 2009 | 2002 Saturn L-Series

3 Answers

NOT GETTING FIRE TO THE SPARK PLUGS


Hello Momtexas1:

>>Remove the Spark Plugs and Wrap the Threaded Section of the Plug with Wire, then Attach the Other End of the Wire to the Engine Block.
>>**First Make Sure the Plastic End that Snaps to the Plug is Allowing Current to the Plug. Use a Test Light or Multimeter and Check for Fire Behind this Connector (through the Large Rubber like Coil Lead to Plug) for Fire to the Plug whenever there is No Fire to the Plug.**
>>Once you are Sure the Coil Lead and Ends to the Plug are Not the Reason for No Fire to the Plug, then with the Plug Still Wired to the Engine and the Coil Lead Attached to the Plug; Remove the Coil Shut Off Wire at the Shut Off Switch.
>>Check for Fire. If No Fire, then Remove the Cut Off Wire from the Coil (removal of the blower housing required) and Check for Fire.
>>If the Spark Plugs are Firing with the Plugs Out and Properly Grounded to the Engine, then Replace the Plugs and Start the Engine.
>>Using an Insulated Plug Wire Puller, Pull the Plug Wire from 1 Cylinder. If the Engine Continuse to Run, then Replace the Plug Wire and Disconnect the Other Plug Wire. If the Engine Quits, then Replace the Other Cylinders Coil.
Send me the Model and Type or Spec Numbers Off the Engine and the Mower Model Numbers, Please. With these I can Locate the Proper Manual and Better Assist you. The Engine Model Numbers May be Stamped Into the Blower Housing (metal engine cover) Above the Spark Plug. The Mower Model Numbers are Usually Located Under the Seat on a Sticker on the Body of the Mower.
>>Thanks.

Respectfully

John

Apr 13, 2009 | Craftsman 42 in. Deck 19.5hp Lawn Tractor

Not finding what you are looking for?
Motorcycles Logo

Related Topics:

165 people viewed this question

Ask a Question

Usually answered in minutes!

Top Harley Davidson Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4514 Answers

Gills Lango

Level 2 Expert

195 Answers

Mike

Level 3 Expert

4336 Answers

Are you a Harley Davidson Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...