Question about Harley Davidson XLH Sportster 883 Hugger Motorcycles

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Bike just dies mid drive. Spark plugs are good (but no spark), coil was tested by Harley and returned with an "all clear" verdict. Plug wires are new, cam seems to be ok. HELP!

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No spark ,well you just answered your own question --change the crank sensor but i have no idea where it is on this bike but i would imagine it is more than likely to be on the cam ,Whats happening is the coil windings are breaking down when it get hot so its not getting a magnetic reading to pass back to the computer to tell it when to fire

Posted on Jul 16, 2010

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1 Answer

No spark to spark plugs


Hi Anonymous, and the usual suspects are:
1. Plugs in bad condition or partially fouled.
2. Spark plug cables in bad condition or leaking.
3. Spark plug gap to close or to wide.
4. Faulty ignition coil, module and or sensor.
5. Battery nearly discarged.
6. Damaged wire or loose connections at battery terminals,
ignition coil, or plug between ignition sensor and module.
7. Intermittent short circuit due to damaged wire insulation.
8. If your bike has a CKP sensor you must leave both plugs in
head and check for spark with a 3rd plug.
Visit website below for possible clues:
http://www.cv-performance.com/harley-diagnostic-trouble-codes/
Good luck

Apr 02, 2014 | 2003 Harley Davidson XLH Sportster 883...

1 Answer

How do i test to see if the spark plugs are fireing


Hi Anonymous, remove spark plug wires off of plugs, leave spark plugs in heads. Use a 3rd known good spark plug to check for spark.
Insert 3rd spark plug into any spark plug wire, ground the threads on bare metal like the edge a cylinder fin. Turn ignition switch on and make sure run/stop switch is in run position and the bike is in nuetral. Hit the starter button and watch for spark. Good luck

Mar 28, 2014 | 2005 Harley Davidson FLSTSC - FLSTSCI...

1 Answer

Try starting and a pop noise and no spark


Hi Anonymous, and the usual suspects are:
1. Plugs in bad condition or partially fouled.
2. Spark plug cables in bad condition or leaking.
3. Spark plug gap to close or to wide.
4. Faulty ignition coil, module and or sensor.
5. Battery nearly discarged.
6. Damaged wire or loose connections at battery terminals,
ignition coil, or plug between ignition sensor and module.
7. Intermittent short circuit due to damaged wire insulation.
8. If your bike has a CKP sensor you must leave both plugs in
head and check for spark with a 3rd plug.
For a prime suspect please visit website below:
Harley Diagnostic Codes Harley Davidson Forums
Good luck

Mar 09, 2014 | 2008 Harley Davidson FLHX Street Glide

2 Answers

2008 Cadillac CTS returning P0303 after replacing spark plug and coil pack


Error Code: P0303
Description:
Cylinder 3 - Misfire Detected
Possible Cause:
Wiring harness, igniter and fuel injector connectors.
Ignition system. (Spark plugs gaps)
Fuel injector No. 3.
Fuel pressure.
Running out of fuel.
EVAP canister purge valve.
Evaporative emission system.
Low compression, cylinder No.3. (check valve clearance and throttle plate for excessive wear)
Engine control module (ECM).

Feb 27, 2014 | 2008 Cadillac Cts

2 Answers

Spark plugs are black on my Harley


Hi Anonymous, and the usual suspects are:
1. Plugs in bad condition or partially fouled.
2. Spark plug cables in bad condition or leaking.
3. Spark plug gap to close or to wide.
4. Faulty ignition coil, module and or sensor.
5. Battery nearly discarged.
6. Damaged wire or loose connections at battery terminals especially the ground cable at "BOTH" ends, ignition coil, or plug between ignition sensor and module.
7. Intermittent short circuit due to damaged wire insulation.
8. If your bike has a CKP sensor you must leave both plugs in
head and check for spark with a 3rd plug. Good luck and have nice day.

Apr 01, 2013 | 2003 Harley Davidson FXSTDI Softail Deuce

1 Answer

No spark on my 1985 harley sportster


Hi Adam, and the usual suspects are:
1. Plugs in bad condition or partially fouled.
2. Spark plug cables in bad condition or leaking.
3. Spark plug gap to close or to wide.
4. Faulty ignition coil, module and or sensor.
5. Battery nearly discarged.
6. Damaged wire or loose connections at battery terminals especially the ground cable at BOTH ends, ignition coil, or plug between ignition sensor and module.
7. Intermittent short circuit due to damaged wire insulation.
8. If your bike has a CKP sensor you must leave both plugs in
head and check for spark with a 3rd plug. Good luck.

Jun 06, 2012 | Harley Davidson XLH 1000 Sportster...

1 Answer

2000 Harley Sportster 1200S how do I test coil.


Hi Mike, if you have a CKP sensor it needs compression to send correct signal to the ICM/ECM, make sure both spark plugs are in heads and use a grounded third plug to check for spark or hold spark plug cable close to spark plug in head. If still not getting spark the usual suspects are:
1. Fouled spark plugs.
2. Battery voltage below 9 volts, loose or broken battery cables especially "GROUND" cable to frame.
3. Loose connection at ignition coil or plug between ignition sensor and module.
4. Spark plug cables in bad condition, shorting / leaking, spark plug cable connections loose.
5. Faulty ignition coil or ignition / electronic module
6. Failed CKP, CMP, MAP or BAS sensor.
7. Faulty ignition switch.
8. Security alarm failing to disarm.
For a prime suspect please visit the website below. Good luck and have nice day.
Harley Davidson Sportster error codes and how to access them Harley Davidson Wiring Diagrams and Schematics

Apr 20, 2012 | 2000 Harley Davidson XL 1200 S Sportster...

1 Answer

Cant get my 03 wideglide to idle at lower rpm,bike dies down when lowering idle screw


Hi Anonymous, and the usual suspects are:
1. Spark plugs in bad condition or partially fouled.
2. Spark plug cables in bad condition or leaking.
3. Spark plug gap to close or to wide.
4. Faulty ignition coil, module and or sensor.
5. Battery nearly discharged.
6. Damaged wire or loose connections at battery terminals especially the ground cable at BOTH ends, ignition coil, or plug between ignition sensor and module.
7. Intermittent short circuit due to damaged wire insulation.
8. Water or dirt in fuel system, carburetor or filter.
9. Fuel tank vent system plugged or carburetor vent line closed off.
10. Carburetor controls misadjusted.
11. Damaged carburetor or intake seals.
12. Loose or dirty ignition module connector at crankcase.
13. Faulty MAP, CKP, and or CMP sensors.
14. Incorrect valve timing.
15. Weak or broken valve springs.
16. Damage intake or exhaust valve.
For a prime suspect please visit website below and good luck:
Big Twin Carb EFI DTC Intructions codes Harley Davidson Forums Harley...

Mar 23, 2012 | 2003 Harley Davidson FXDWG Dyna Wide Glide

1 Answer

I have a 1993 Harley Sportster 1200 XLH 883 and a problem that I cant figure out! The bike does a quick(.5 seconds) die down and then recovers. It happens only in first gear and never before 3k rpm. The...


Hi Johnny, and the usual suspects are:
1. Spark plugs in bad condition or partially fouled.
2. Spark plug cables in bad condition or leaking.
3. Spark plug gap to close or to wide.
4. Faulty ignition coil, module and or sensor.
5. Battery nearly discharged.
6. Damaged wire or loose connections at battery terminals especially the ground cable at BOTH ends, ignition coil, or plug between ignition sensor and module.
7. Intermittent short circuit due to damaged wire insulation.
8. Water or dirt in fuel system, carburetor or filter.
9. Fuel tank vent system plugged or carburetor vent line closed off.
10. Carburetor controls misadjusted.
11. Damaged carburetor.
12. Loose or dirty ignition module connector at crankcase.
13. Faulty MAP, CKP, and or CMP sensors.
14. Incorrect valve timing.
15. Weak or broken valve springs.
16. Damage intake or exhaust valve.
For a prime suspect please visit website below and good luck:
Harley Davidson Wiring Diagrams and Schematics

Oct 08, 2011 | 1993 Harley Davidson XLH Sportster 883

1 Answer

2003 harley sportster. my bike starts and runs for about 5 min then dies and wont start back up. ive checked and am loosing spark. after it sits for awhile it will start but then dies again 5 min later....


Your bike is not equipped with points. Harley stopped using points in 1979. What you have is a solid state ignition unit and the flashing light is used to time the ignition with. The number of wires and where they should go is dependent upon what type of ignition unit you have. If you can see the unit, it should have a name and model number on it.

Here's a test. Start the bike and allow it to run until it shuts off. Pull the spark plug wire and put another set of spark plugs in them and lay the plugs against the engine so that they get a good ground. Turn the ignition switch on and then back off. Watch the plugs when you turn the switch off. You should see a single spark. If not, your coil is probably bad. If you see the spark, the coil is good.

To test the coil, take all the wires off the small terminals of the coil. Use an ohm meter and put the function switch in R X 1 scale. Measure the resistance between the two terminals. You should read between 2 and 3 ohms of resistance. If it reads any higher than this, the coil is bad.

If the coil checks good, then the problem is in the solid state unit in the timer cavity. If it's an aftermarket unit, you'll have to send it back to the factory to see if it's bad. If it's an aftermarket unit, you can go to their website and look up the technical information and installation instructions for the unit using the model number.

Good Luck
Steve

Apr 25, 2011 | Harley Davidson XLH Sportster 883 Hugger...

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