Question about 2003 Harley Davidson FLHR Road king

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2003 Harley Davidson FLHR Road king check engine light comes on battery goes flat

Posted by Anonymous on

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  • Harley Davidson Master
  • 39,944 Answers

Hi Anonymous, perform the following tests:
1. Fill acid type batteries to proper levels.
2. Charge battery overnight at 1-2 amps you need 12.5 volts or better after charging.
3. Hook up battery positive cable, then with your multimeter on the milliamp scale connect one lead to the negative battery post and the other lead to the ground cable. Meter should read 3 milliamps or less, 10 milliamps with a radio, 15 milliamps with radio and CB. If your meter reads higher you need to isolate the circuit by pulling fuses and circuit breakers one at a time and observe meter for drop in aprerage then get out your test light and track down the short in that circuit.
3. Make sure all connections are clean and tight especially the negative cable at both ends.
4. Hook up volt meter to battery and start engine, if meter falls below 9.5 v while cranking replace battery.
5. With engine running at 3600 RPM battery should read 14.3-14.7 volts if not continue tests.
6. Unplug voltage regulator from alternator at crankcase by front of primary cover.
7. To test voltage regulator go to: https://www.youtube.com/watch?v=F8EjV0IjW9Q
8. With ohm meter, one lead grounded, touch alternator pin meter should read infinity, if not replace stator.
9. With ohm meter, both leads touching alternator pins meter should read 0.1 to 0.2 ohms on 1989 and later models. 0.2 to 0.4 ohms 1988 and earlier models, if not replace stator.
10. With volt meter set on AC scale, both leads touching alternator pins meter should read
16 to 20 volts AC for every 1000 RPM'S 1989 and later and 19 to 26 volts AC for every 1000 RPMS. If not replace rotor.
17. For a free wiring diagram please visit the website below and good luck. Harley Davidson Wiring Diagrams and Schematics

Posted on Jun 16, 2015

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

ga_drifter
  • 36 Answers

SOURCE: 2006 Harley Davidson FLHR Road King

yes you should start it at least once weekly to maintain battery and keep engine lubricated, also it keeps fuel flowing through the bike. but dont just start up then switch off, make sure you get it up to normal operating temprature, this keeps moisture out of the engine oil.

Posted on Jan 28, 2009

rockitman187
  • 2559 Answers

SOURCE: The battery light keeps coming on on my 05 Harley

Could be the Alternator or the voltage regulator.

Posted on May 14, 2009

  • 116 Answers

SOURCE: The check engine and battery light start to turn

might check alt.out put but check batt connections first get a book and follow the directions to ck AC output youll need to rev the motor some unless you have a three phase alt.which you might ,the book will tell you

Posted on Apr 29, 2010

  • 25 Answers

SOURCE: How many ounces does a 2008 FLHR Harley Davidson Road King hold?

Well i blow about 20 ounces of fluid and u ?
I guess you are talking about fork oil? it's measured!!!

Posted on May 23, 2010

Gozer
  • 435 Answers

SOURCE: harley davidson road king 2000 flhr

Don't ding me on this response, (it's happened to me) is the run switch turned off, it's the first switch on the right handlebar.
I'm assuming it was running prior to doing your maintenance.

Posted on May 31, 2010

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