Question about 2003 Harley Davidson FXDL Dyna Low Rider
Riding over 70 MPH engine cuts in &out
Posted by Anonymous on
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,
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 vale.
For a prime suspect please visit website below and good luck:
Big Twin Carb EFI DTC Intructions codes Harley Davidson Forums Harley...
Posted on May 15, 2015
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Posted on Jan 02, 2017
SOURCE: 2003 dyna ignition breaking down
It never hurts to check your grounds, they have a habit of loosening up. It sounds like either the voltage regulator or the stator is failing to me. If you can get it to fail at home take a multi-meter and get a reading on the stator, I don't know the values on a dyna, but you should get a reading at idle and it should climb as you rev the motor. When my sporster did this it turned out to be the stator.
Posted on Jun 19, 2009
Call your local dealer and have them run your vin( Vehicle Identification Number ) through HD Net to see if you have any outstanding recalls. There was a recall on the circuit breaker and the ignition switch around that time of production. better to be safe than sorry.
Posted on Jun 27, 2009
SOURCE: 93 Dyna low rider fork oil.
your local hd shop should be able to answer this for you as its a mesured amount and to much or too little will make the bike not handle right
Posted on Sep 05, 2009
the tranny plug is behind the oil spout its usually a big allen head bolt. You should use a quality oil like AMSOIL 20W50 motorcycle oil or AMSOIL gear oil. I have the 20W50 in mine and really like the benifit of not having a pultrolium product in my bike. You can get the AMSOIL online a http://hbsynlube.com/sales. You'll beglad you changed it.
Posted on Sep 13, 2009
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