Electrical/Lighting/Alarm Having electrical problems? Discussion on everything electrical and lighting systems.

Super Cool Guy Here

Thread Tools
 
Search this Thread
 
Old Mar 29, 2021 | 11:58 AM
  #31  
0003's Avatar
0003
Thread Starter
|
Cruiser
Joined: Mar 2019
Posts: 121
Likes: 7
From: Canada
Default Hmmm

Originally Posted by Zanthamos
Unless someone added one aftermarket there is no relay, no need to have one with that low power draw. Clicking is likely blowing the CB due to a dead short that is likely under the rear fender. That bike uses CBs and not fuses but CBs go bad an blow too early as well so you may want to replace it and see if is just a bad breaker.

The VR was installed on the wrong stud of the main CB as it should have been put on the silver side not the copper side, this helps protect the battery in an over current condition, the pin 30 of the start relay definitely looks like you need to depin it and repair, likely will cause starting issues, check for voltage at that wire as it is the supply wire for the solenoid power. You can bench test the solenoid by applying 12vdc to the small green wire and ground to the case of the starter, it'll either kick or it won't. If it kicked and the solenoid is removed from the starter then you can with power applied to the electromagnet side you can check the continuity between the two big conductors to verify power going from battery to the starter.
Thanks. Wiring diagrams all say something different. Why is there so much conflicting info? I'm still not sure... the postive cable that goes directly to the starter has another thin wire encased along side it going to same connection on the starter then back up to that circuit breaker on the same copper side as the voltage regulator.

I assumed I might be wrong because of the conflicting diagrams.

The more I thought about it the more it seems that this configuration shares the postive power from battery and starter as well as the power from the charging system before heading across the circuit breaker and into the rest of the bikes wiring...while protecting the bikes circuits from an overload from over charging from regulator...It would be better to destroy the battery than melt the wiring no? In any case the postive cable that runs down from the cb to the starter and back up to the battery isn't going through the circuit breaker is it? Seems like its just going across it... maybe it still works the same I guess. Copper side has a b for battery side too doesn't it. I watched a video with a cut out and its the copper side that does the breaking...?
 
Reply
Old Mar 29, 2021 | 02:36 PM
  #32  
0003's Avatar
0003
Thread Starter
|
Cruiser
Joined: Mar 2019
Posts: 121
Likes: 7
From: Canada
Default Also noticed this

1993 Wiring diagram says 86 is ground and 85 is postive

1994 wiring diagram is different... the opposite.

However my starter relay wiring was wired as if it was a


1994.


I guess maybe it doesn't matter if all its doing is energizing the coil.

its a 30 amp in 93 and a 50 amp in 94.

I wonder why mine has a 50 amp.

Does the 94 voltage regulator put out more amps?

I know that at some point the output voltage went up but that wouldnt increase that many amps.

Otherwise do you know why they went with a higher amp breaker?

I noticed they have more cbs up front totalling 91 amps
The 93 only totals 70.

I NEED more time with this manual... I'm mixed up about alot. Lol
 

Last edited by 0003; Mar 29, 2021 at 05:37 PM.
Reply
Old Mar 29, 2021 | 04:24 PM
  #33  
Dan89FLSTC's Avatar
Dan89FLSTC
Seasoned HDF Member
Veteran: Navy
Active Streak: 30 Days
Top Answer: 3
Top Answer: 5
Joined: May 2008
Posts: 21,173
Likes: 12,740
From: South Carolina
Default

Originally Posted by 0003
I can take pictures for you... there is a starter relay and a stop light relay side by side.
I realized my goof right after I posted, so I deleted my post, but you were too quick...
 
Reply
Old Mar 29, 2021 | 04:37 PM
  #34  
0003's Avatar
0003
Thread Starter
|
Cruiser
Joined: Mar 2019
Posts: 121
Likes: 7
From: Canada
Default

Originally Posted by Dan89FLSTC
I realized my goof right after I posted, so I deleted my post, but you were too quick...
Yeah I'm kind of using this to document what I know and what I think I know.... and as a way to be told that I dont know... and what I should know instead. Lol... I'm very confused but between replies and typing out loud I'm working my way through it. I have number of problems so its a good idea to just dig deep and solve them all now.
 
Reply
Old Mar 29, 2021 | 06:44 PM
  #35  
0003's Avatar
0003
Thread Starter
|
Cruiser
Joined: Mar 2019
Posts: 121
Likes: 7
From: Canada
Default An aftermarket stereo was installed

With a seperate amp... could that be reason for 50 amp breaker instead of 30 and maybe even a hidden breaker that keeps clicking when I pull brakes because its the source of short
 
Reply
Old Mar 29, 2021 | 11:59 PM
  #36  
Zanthamos's Avatar
Zanthamos
Outstanding HDF Member
Veteran: Air Force
Joined: Feb 2015
Posts: 2,414
Likes: 433
From: Arkansas
Default

The thin wire on the main CB from the battery is likely from the Voltage Regulator especially if it is a black wire, but it should be on the silver side not the copper side.
 
Reply
Old Mar 30, 2021 | 12:29 AM
  #37  
0003's Avatar
0003
Thread Starter
|
Cruiser
Joined: Mar 2019
Posts: 121
Likes: 7
From: Canada
Default The copper side

Originally Posted by Zanthamos
The thin wire on the main CB from the battery is likely from the Voltage Regulator especially if it is a black wire, but it should be on the silver side not the copper side.
is voltage regulator 100 percent.

The other wire goes to the same place as my postive cable from battery. I believe it is specifically the starter motor power supply from battery direct. I'm finding more wiring diagrams saying that my wiring is correct....


this one below doest show poles at all


The second diagram shows your way...I think the difference is 1993 vs 1994.. the main circuit breaker is wired very differently and different things are paired together. My 1993 is wired as if it was a 1994.

The important thing to figure out is why someone did that... i shouldn't religiously follow 1993 diagram if 1994 like changes or aftermarket demands like stereo have been made to the wiring. I need to understand better.

Look here




 

Last edited by 0003; Mar 30, 2021 at 12:40 AM.
Reply
Old Mar 30, 2021 | 08:41 AM
  #38  
Dan89FLSTC's Avatar
Dan89FLSTC
Seasoned HDF Member
Veteran: Navy
Active Streak: 30 Days
Top Answer: 3
Top Answer: 5
Joined: May 2008
Posts: 21,173
Likes: 12,740
From: South Carolina
Default

The factory used to connect the voltage regulator wire to the copper stud on the main breaker, up to early `90s or so, then they switched over to the silver stud.

The layout of the clymer diagrams are not great, a lot of them are incorrect.

Here is the real deal:

Harley Davidson Service Information Portal
 

Last edited by Dan89FLSTC; Mar 30, 2021 at 09:08 AM.
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 Mar 30, 2021 | 02:11 PM
  #39  
Zanthamos's Avatar
Zanthamos
Outstanding HDF Member
Veteran: Air Force
Joined: Feb 2015
Posts: 2,414
Likes: 433
From: Arkansas
Default

The purpose of the VR being on the silver side of the CB is to isolate the battery in event of a VR failure that over-currents the circuit, this helps prevent battery fires.
 
Reply
Old Mar 31, 2021 | 06:27 AM
  #40  
Dan89FLSTC's Avatar
Dan89FLSTC
Seasoned HDF Member
Veteran: Navy
Active Streak: 30 Days
Top Answer: 3
Top Answer: 5
Joined: May 2008
Posts: 21,173
Likes: 12,740
From: South Carolina
Default

Connecting the VR at the silver stud protects the wiring going back to the VR, in case it shorts to ground. I think this is the reason for connecting at the silver stud.

Most vehicles have no breaker between the alternator/voltage regulator and the battery. Harley connected the VR at the copper stud for many years.

 
Reply



All times are GMT -5. The time now is 07:02 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