2003 Harley Davidson FXDWG Dyna Wide Glide Logo
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Anonymous Posted on Jan 15, 2014

2003 Harley Davidson FXDWG Dyna Wide Glide misfires at all constant speeds @

1 Answer

Gregg Mahin

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  • Harley Davidson Master 66,744 Answers
  • Posted on Mar 18, 2021
Gregg Mahin
Harley Davidson Master
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Joined: Mar 16, 2015
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Hi, Anonymous and the usual suspects are:
1. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a cursory reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead-acid batteries.
2. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
3. Spark plugs in bad condition or partially fouled.
4. Spark plug cables in bad condition and leaking check for spark leakage in the dark
5. Spark plug gap too close or too wide.
6. Faulty ignition coil, module, and or sensor.
7. Loose, dirty, or corroded ignition module connector at crankcase.
8. Faulty CKP or CMP, MAP, ETS, ATS, TPS, O2 sensor.
9. Dirty air filter.
10. Intake air leak.
11. Water, dirt, or rust in the fuel system.
12. Carburetor contaminated, sticky float, plugged jets.
13. Carburetor has oil in the bowl due to excessive oil in pre-mix.
14. Carburetor vacuum diaphragm torn, cracked, not seated or installed improperly.
15. Multiple carburetors out of sync.
16. Fuel filter clogged.
17. Old or contaminated fuel.
18. Fuel tank vent system plugged or carb vent line closed off.
19. Gas cap diaphragm valve faulty.
20. Vacuum line from the intake manifold to the fuel valve is broken, cracked, pinched, or missing.
21. Carburetor controls misadjusted.
22. Incorrect valve timing.
23. Valve springs floating, weak, or broken.
24. Damaged intake or exhaust valve.
25. Incompatible performance parts.
26. The control module may be in "LIMP" mode
27. Check for engine trouble codes.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below and for more specific information or questions at no charge please feel free to contact me at [email protected]. Good luck and have a wonderful day.
https://www.harley-davidsonforums.com/threads/misfire.226034/
http://www.mediafire.com/file/65e9i0e80baqvhz/Harley-Davidson_Dyna_Service_Manual_2003.pdf/file
https://partsfinder.onlinemicrofiche.com/ronnies/showmodel.asp?make=hdmc
http://mybikemanuals.com/harley-davidson/harley-davidson-dyna-glide-owners-manuals/
https://www.6ya.com/ to speak to me personally

5 Related Answers

Anonymous

  • 12 Answers
  • Posted on Jun 09, 2009

SOURCE: oil drain plug 2004 harley dyna wide glide

your oil drain is on the right side pipe side of your bike look under near the rear back part of your frame you will see a plug with a one quarter allen key threaded plug style bolt kinda hidden in bridge plate of frame it is flat in conjuction with line on bike it is in area right behind where your back pipe expands to baffle of pipe where its skinny and then gets bigger its the one closest to you

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Anonymous

  • 150 Answers
  • Posted on Jun 15, 2009

SOURCE: will a gas tank off a 5 harley dyna wide glide

It sure will!! You answered your own question. guess i get no points for this one.

Anonymous

  • 50 Answers
  • Posted on Jul 13, 2009

SOURCE: 2006 HARLEY DAVIDSON DYNA WIDE GLIDE HAS A MISS IN

This is a possability but it does not happen as often as most would like to say. A quick check would be to run the engine to operating temp the take WD40 lube spray and spray it directly at the seals on the heads. If it is an intake leak your motor will change its idle. It will either speed up or miss. This is an indication of an intake leak.

Anonymous

  • 5 Answers
  • Posted on Aug 31, 2009

SOURCE: Motorcycle wont start

Check your spark plugs, they are quite fragile & yoy may have a crack in the ceramics. Replacement is recommended.

Anonymous

  • 1 Answer
  • Posted on Sep 17, 2009

SOURCE: cant find my fuse box for my 2000 harley davidson wide glide

You'll have to remove the large cover plate (pulls right off) direct opposite side of your battery cover plate to access the fuses, look to the rear of the bracket.

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For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below and for more specific information or questions at no charge please feel free to contact me at [email protected]. Good luck and have a wonderful day.
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