Touring Models Road King, Road King Custom, Road King Classic, Road Glide, Street Glide, Electra Glide, Electra Glide Classic, and Electra Glide Ultra Classic bikes.
Sponsored by:
Sponsored by:

Need some electrical help!!

Thread Tools
 
Search this Thread
 
Old Sep 30, 2013 | 04:44 PM
  #1  
Mixter's Avatar
Mixter
Thread Starter
|
Road Warrior
15 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Mar 2009
Posts: 1,401
Likes: 3
From: Vancouver, bc
Default Need some electrical help!!

I have a 2010 Street Glide with a sony head unit, amp, hawg wired hua 360 and arnott shocks with compressor. That's about it for electrical add ons.

The issue:
I noticed while riding when the bike would hit around 3000-3500 rpm my voltage gauge and oil gauge needles would start bouncing back and forth. Also the hand controls and head unit controls would stop working or work intermittently.
Took it to my indy who did some tests and concluded:
- Battery was ok
- Voltage regulator seemed to be fried.

They took a voltage regulator from another bike and everything worked fine.
I ordered a voltage regulator from Harley and when we installed it, the problems were still happening. Again we put on another bike's voltage regulator and the problems stopped, so we figured I got a bad regulator from the dealer.
I sent the voltage regulator back and ordered a new one from drag specialties.
On the way home from the indy I had put my original voltage regulator on just to get me home. Everything seemed to be working fine all of a sudden.

I recently installed the drag specialties voltage regulator and the gauges stopped bouncing around but;
- The audio controls don't work when the bike is running or when it's in the on mode....but they work fine when it's turned to acc mode.
- at 3500 rpm I seem to get a brief flicker of the headlight and the voltage drops a little.

I should mention that when the indy was testing it everything worked fine until the bike hit 3500 rpm and then the voltage would drop some from 13 to 9.

sorry for the long winded post...anyone have any ideas what could be the problem?
 
Reply
Old Sep 30, 2013 | 04:55 PM
  #2  
TeeStu's Avatar
TeeStu
Cruiser
Joined: Apr 2013
Posts: 205
Likes: 2
From: Mena AR
Default

I would start by checking Ground Connections.....
 
Reply
Old Sep 30, 2013 | 05:56 PM
  #3  
Mixter's Avatar
Mixter
Thread Starter
|
Road Warrior
15 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Mar 2009
Posts: 1,401
Likes: 3
From: Vancouver, bc
Default

not being an electrical guy I'll get someone to look at the grounds
 
Reply
Old Sep 30, 2013 | 05:56 PM
  #4  
LeeH's Avatar
LeeH
Cruiser
10 Year Member
Joined: Sep 2011
Posts: 184
Likes: 1
From: Pequannock, NJ
Default

I had a similar problem with my hawg 360 controls as well. I spent hours rewiring circuits and checking grounds.
My problem was the power circuit had too much load, and I got a voltage drop on that wire - just enough to make the 360 drop offline. I would have to cycle the key switch to get it to work again.
 
Reply
Old Sep 30, 2013 | 06:40 PM
  #5  
Mixter's Avatar
Mixter
Thread Starter
|
Road Warrior
15 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Mar 2009
Posts: 1,401
Likes: 3
From: Vancouver, bc
Default

Lee- what is the power circuit and how did you fix it?
 
Reply
Old Sep 30, 2013 | 06:48 PM
  #6  
LeeH's Avatar
LeeH
Cruiser
10 Year Member
Joined: Sep 2011
Posts: 184
Likes: 1
From: Pequannock, NJ
Default

That is a circuit that is always hot - direct power to the battery. Its a low amperage circuit that is primarily used for the 12v to the radio for clock/station memory. Make sure nobody tapped into it for other accessories - compressor, LED's, etc. you can always try moving the power for the 360 to another circuit as well.
 
Reply
Old Sep 30, 2013 | 07:04 PM
  #7  
Mixter's Avatar
Mixter
Thread Starter
|
Road Warrior
15 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Mar 2009
Posts: 1,401
Likes: 3
From: Vancouver, bc
Default

thanks Lee I'll look into it!
 
Reply
Old Sep 30, 2013 | 07:45 PM
  #8  
WillyD's Avatar
WillyD
Tourer
Joined: Mar 2010
Posts: 274
Likes: 3
From: Portage, IN
Default

Originally Posted by LeeH
That is a circuit that is always hot - direct power to the battery. Its a low amperage circuit that is primarily used for the 12v to the radio for clock/station memory. Make sure nobody tapped into it for other accessories - compressor, LED's, etc. you can always try moving the power for the 360 to another circuit as well.
My guess?? Lee is right...
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-1

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-2

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-4

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-5

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
story-6

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-7

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-8

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-9

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
Old Sep 30, 2013 | 07:51 PM
  #9  
06SGWA's Avatar
06SGWA
Road Master
Joined: Mar 2012
Posts: 939
Likes: 9
From: WA
Default

Did you by chance have this issue right after the compressor or 360 install? Most often, people will use any hot wire they can find and run extra accessories off of it. I would say that if installing one of these items was the beginning of the issues, you should probably run a new 12v constant to it/them. A decent gauge wire with inline fuse, straight from the battery would be ideal. Couldn't hurt to do this anyway, even if it's not the culprit.
 
Reply
Old Sep 30, 2013 | 08:19 PM
  #10  
santajim's Avatar
santajim
Grand HDF Member
Veteran: Navy
15 Year Member
Liked
Community Favorite
Joined: Dec 2008
Posts: 3,721
Likes: 372
From: Tonopah Az
Default

A friend and I were on a ride last year and about half way up to Reno his bike started doing like what you are saying. He took it to the Dealer in Reno and they spent 2 days looking at different stuff replaced a bunch of stuff and thought they had it fixed. We took off and about 100 miles out in the boondocks it finally quit. I kept telling him it was a short or broken wire but he wouldn't let me take a look. He finally had to have it towed into Redding Ca. and the tech there found the small wire on the positive side of the battery was broken up in the connector, he repaired it and my buddy finished his trip and I mine( we had to separate, he went north to Wa and I went down the Ca coast). Something to check.
 
Reply



All times are GMT -5. The time now is 08:04 PM.

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