Question about 2008 Harley Davidson FXD Dyna Super Glide

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08 Harley Superglide will not start

Had the bike down for approximately a year doing paint and modifications. No mods to engine or fuel system. Will not start throttle body dry.

Posted by Anonymous on


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  • Harley Davidson Master
  • 3,506 Answers

You need spark at the plugs, fuel and compression. If you have spark take off the air cleaner, open throttle plates and spray some fresh fuel into the inducting module, let the throttle plates close and try to start it. If it starts if is fuel related. CHANGE you plugs also even if they look good. ALSO check that nobody opened the throotel wide aqnd locked it there with the friction lock on the grip because then it wilol not start either.

Posted on Oct 18, 2014


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Posted on Jan 02, 2017

  • 150 Answers

SOURCE: 1999 road king wont start

Its your fuel pump if you can't hear it. And its inside your tank. Not a hard fix if you have a book that tells you how to remove it. Alot of procedures to follow to get it right. And yes it does work off a relay.

Posted on Jun 14, 2009

  • 4536 Answers

SOURCE: I have a Harley Davidson Dyna Superglide T-Sport

u shocked or vibrated the ignition system-inspec wiring for cutz n looseness-takes time n patience-concentrate on the plug wire n where it connecs to coil-may need to take tank etc off-could be a fuse too-many good repair manuals r retailed

Posted on Sep 05, 2009

Testimonial: "Thank you very much for the prompt advice. :-)"

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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

  • 301 Answers

SOURCE: 2003 Harley Davidson XL 1200 C Sportster

That's a strange one. The only things I can think of suggesting are:

  • Clogged gas cap vent. The next time is starts running poorly, remove the gas cap briefly and see if things improve. If so, then the cap is not venting as it should.
  • Moisture trapped in float bowl. Drain the contents on the carburetor float bowl into a clean container and check for dirt, rust, water, or anything else that doesn't belong there.
  • Dirty fuel filter. If there is one, replace it.
  • Air leak between carb and engine. Check tightness of clamps and manifolds for cracking. WD-40 sprayed around those areas with the engine idling will help detect any leaks.
That's all I can think of. Please let me know if any of my suggestions fixed it.

Posted on Dec 09, 2009

  • 150 Answers

SOURCE: High idle on start-up

Its your idle senser sits on top of the manifold u will see it looking at u when u take off air filter cover. Little black plastic.plug in.

Posted on Dec 20, 2009

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