Harley Davidson Forums

Ignition/Tuner/ECM/Fuel Injection Need advice on ignition issues? Questions about a tuner? Have questions about a EFI calibration or Fuel Injection? Tips on Engine Diagnostics, how to get codes, and what they mean. Find your answers here.

Headlight pulsing

Thread Tools
 
Search this Thread
 
Old Sep 28, 2007 | 05:28 PM
Share
  #1  
cocoaroading's Avatar
cocoaroading
Thread Starter
|
Stage III
Joined: Sep 2007
Posts: 3
Likes: 0
Default Headlight pulsing
About three weeks ago, my 03' RKing Classic's headlight starting intermittingely going from low beam to really low beam and then back to regular brightness again. This cycle happens about every 10 seconds. I have noticed that the battery is not as strong when starting the bike. I thought it might be a faulty auxillary light switch. I disconnected the switch. Any suggestions??????? My first thought was the regulator. Please give me some direction to head to.
 
Reply
0
Old Sep 28, 2007 | 10:56 PM
Share
  #2  
Doc 1's Avatar
Doc 1
Outstanding HDF Member
Joined: May 2007
Posts: 2,304
Likes: 31
From: Florida
Default RE: Headlight pulsing
Bad ground
 
Reply
0
Old Oct 4, 2007 | 11:48 AM
Share
  #3  
NCCopBikeRider's Avatar
NCCopBikeRider
Road Warrior
Joined: Jun 2007
Posts: 1,539
Likes: 7
From:
Default RE: Headlight pulsing
Ditto bad/loose ground

Check the commom ground connection under the seat
 
Reply
0
Old Oct 13, 2007 | 05:31 PM
Share
  #4  
cocoaroading's Avatar
cocoaroading
Thread Starter
|
Stage III
Joined: Sep 2007
Posts: 3
Likes: 0
Default RE: Headlight pulsing
I took the seat off and discovered that both battery bolts had worked their way loose. Tightened up everything and no problems, Thanks guys!
 
Reply
0
Old Oct 13, 2007 | 05:51 PM
Share
  #5  
TazInCT's Avatar
TazInCT
Tourer
Joined: Nov 2005
Posts: 403
Likes: 1
From: Connecticut
Default RE: Headlight pulsing
I love happy endings
 
Reply
0
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
2003 FXST Headlight Dims
Elevatorman58
Softail Models
5
Sep 10, 2016 03:12 AM
headlight demon 2000 ultra classic
svarnster
Touring Models
5
Mar 24, 2016 02:34 PM
Lights dimming intermittently-regulator issue?
duoglider
Ignition/Tuner/ECM/Fuel Injection
8
Feb 17, 2011 09:09 PM
headlight dims with blinker on
bigbird883
Ignition/Tuner/ECM/Fuel Injection
3
Aug 15, 2009 10:42 PM
Headlight dimming alot by itself!
RobsSoftie
Softail Models
6
Jun 25, 2009 09:08 PM
Tags
Back to Subforum
Ignition/Tuner/ECM/Fuel Injection
View Next Unread
Daytona Sensor Setup is lookin good!!!!!




Advanced Search
Reply Closed Thread Share
Forum Jump

All times are GMT -5. The time now is 08:56 AM.

story-0
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-1
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-2
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-3
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-4
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-5
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-6
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-7
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-8
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-9
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE