Question about 1993 Harley Davidson XLH Sportster 883

1 Answer

1993 Harley Sportster 883 Batt. is tested and good, generator tested and good, regulator is tested and good, no drwa on batt with ignition off, Charging system putting out 13.5 VDC at 2000 rpm. At idle charging light comes on bright but goes out upon reving engine up, and the battery is discharging while engine is running. What am I missing??

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 4,565 Answers

You've already spotted the problem. 13.5 volts is not enough to keep the battery charged. It will slowly lose it's charge. You should be charging at 14.5-15.0 volts.

Check your regulator output. Look just behind the base of the rear cylinder and you'll see the wires coming out of the primary that go to the regulator. There's a plug in the line somewhere. Unplug it. You'll be measuring the output of the alternator so you'll be dealing with the wire on the alternator end of the plug. There are two metal contacts in the plug. You'll need a DVOM (digital volt ohm meter) to do this test. Set the meter's function selector switch to AC VOLTS, 50 VOLTS or greater. Start the engine and bring it to a high idle. Insert one meter lead into each metal contact. It make no difference which lead goes where as you're measuring AC voltage. Your meter should read at least 25 volts or higher. If not, your stator is bad.

If you read 25 volts or more, your regulator needs replacing.

Good Luck

BTW: Early 1984 was the last year for a generator on the Sportster. Late 1984 to present, the bikes have alternators on them. Much better than the old generators. Much better.

Posted on Sep 14, 2010


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

2008 Harley Davidson XL 883C Sportster 883 Custom shuts down while riding

Hi, Kirky and the usual suspects are:
1. Severely discharged or a damaged battery must have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a preliminary 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. Faulty alternator/generator and or voltage regulator.
3. Loose or corroded battery terminals and or cables especially the "NEGATIVE" cable, look for loose, corroded, or broken connectors inside the cable harness at "BOTH" ends.
4. Faulty main circuit breaker or ignition switch, check for loose connections and continuity.
5. Faulty system and or ignition relay, check for continuity.
6. Faulty ignition coil, ignition/electronic module.
7. Faulty CKP, CPS, CMP, MAP, TPS, or BAS sensor, corroded, loose or broken wire connector pins/sockets.
8. Throttle cables and or idle speed improperly adjusted hot idle speed should be 950 RPM to 1000 RPM.
9. Faulty neutral, side stand or clutch lever safety switch.
10. Fuel tank empty
11. Fuel tank contaminated with ethanol sludge.
12. Water or dirt in the fuel system, or clogged filter.
13. Restricted, blocked or kinked fuel line.
14. Faulty fuel pump.
15. Faulty pressure regulator.
16. Faulty or clogged fuel injectors.
17. Lean angle switch is faulty or needs adjustment.
For more information about your issue and valuable "FREE" downloads that you 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 Good luck and have a wonderful day.
Bike shuts off while riding WTF Harley Davidson Forums
Instant Tech Relief To speak to me personally absolutely "FREE"

Aug 21, 2017 | 2009 Harley Davidson XL 883C Sportster 883...

1 Answer

Harley batter seems to die and the starter clicks

Hi Anonymous, have your battery load tested, then the charging system, alternator should put out 14.3 to 14.7 volts. If not check the voltage regulator for bleed back and the alternator for output. Good luck

Apr 08, 2014 | 1993 Harley Davidson XLH Sportster 883...

1 Answer

86 sportster 883 put new batt in starter works but wont

Hi Anonymous, this question has already been asked and answered. Thank you has it started yet?

Dec 12, 2013 | 2001 Harley Davidson XL Sportster 883...

1 Answer

1991 harley sporster not charging is it the regulator

Hi Anonymous, could be for more information about your question please visit the websites below. Good luck and have nice day.
Harley Sportster Charging System Testing tips

Jul 10, 2012 | 1993 Harley Davidson XLH Sportster 883...

1 Answer

My 01 883 harley sportster turns over but, wont start?

3 things r needed for starting--r u gitten gas from tank to carb--r u gitten spark--and is compression rite make sure the batt is @12v and cables r tite-inspec plug wires for wear--buy a haynes or clymer manual today

Aug 06, 2010 | 2001 Harley Davidson XL Sportster 883...

1 Answer

2005 Harley sportster 883, plugs are good , wires are new, no spark when cranked up

is 12 volts getting to the coil,.check the ignition module under the cover,all the wires tight,check wire to the points,

Jun 29, 2010 | 1993 Harley Davidson XLH Sportster 883

1 Answer

My Bike shut down while it was running fine!!

Check the voltage at the battery w/ a voltage meter...4 bucks at Harbor Freight...I doubt you have enough voltage to spin the starter. To prove my point put some jumper cables on the batt hook to a 12 volt source, cycle ,car,truck (engine off on donor veh)..should fire up..check tightness of all batt connections...I had a battery die right in the middle of a ride one time,and it was a if it starts w/a jump, time for a new batt...good Luck to you friend.....Tim

May 03, 2009 | 1993 Harley Davidson XLH Sportster 883

Not finding what you are looking for?
1993 Harley Davidson XLH Sportster 883 Logo

455 people viewed this question

Ask a Question

Usually answered in minutes!

Top Harley Davidson Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4536 Answers


Level 3 Expert

4340 Answers


Level 3 Expert

76649 Answers

Are you a Harley Davidson Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides