Shovelhead A place to talk about Shovelheads.

Wiring harness

Old Jul 29, 2009 | 07:42 AM
  #1  
jdot's Avatar
jdot
Thread Starter
|
3rd Gear
Joined: Jun 2009
Posts: 7
Likes: 0
From: catawba co. nc
Default Wiring harness

I'm buiding a Bobber. I'm using Paughco Rigid frame, The Donor Bike is a '78 FXE Superglide, I've got everything dissambled my next step is ordering a new wiring harness and anything new/updated in the electrical system. I've never owned a Shovelhead before and would like to convert things that will make the bike dependable. I also want turn signals, I've seen some Chops that don't have them but I wouldn't feel safe without them. Any suggestions from a voice of experience?
 
Reply
Old Jul 29, 2009 | 09:30 AM
  #2  
frog13's Avatar
frog13
Outstanding HDF Member
Joined: Apr 2008
Posts: 3,140
Likes: 17
From: Wisconsin
Default

I haven't built from scratch in quite a few years, but thinking of completely redoing my shovel soon into an another old school chop. The last one I did had me chopping up the harness so much to get what I wanted, I think this time I will just create my own harness from scratch so it is done right from the start.
 
Reply
Old Jul 29, 2009 | 12:45 PM
  #3  
FilthyLucre's Avatar
FilthyLucre
Road Master
15 Year Member
Joined: Jun 2008
Posts: 1,078
Likes: 39
From: NW Florida
Default

It's not hard to wire your own. Find a wiring diagram that suits your needs. I don't know what kind of ignition switch or whether you have electric start or not. I use 14 ga wire for most circuits and crimp and solder all connections. When you buy wire get as many colors as you can to match the wiring diagram.
 
Reply
Old Jul 31, 2009 | 12:22 AM
  #4  
81shovelflh's Avatar
81shovelflh
2nd Gear
Joined: Jul 2009
Posts: 6
Likes: 0
From: richfield, mn
Default

ahhhhhh, stupid question but please respond! whats the proper power down sequence for an 81 flh? i'm sure its the engine kill switch, but thats having a problem
cause when the kill switch is depressed, it starts to power down properly, but then the engine rolls over again? (not the best way to describe it, sorry!) anyway, its definitely something to do with the ignition circuit
 
Reply
Old Jul 31, 2009 | 12:31 AM
  #5  
FilthyLucre's Avatar
FilthyLucre
Road Master
15 Year Member
Joined: Jun 2008
Posts: 1,078
Likes: 39
From: NW Florida
Default

Originally Posted by 81shovelflh
ahhhhhh, stupid question but please respond! whats the proper power down sequence for an 81 flh? i'm sure its the engine kill switch, but thats having a problem
cause when the kill switch is depressed, it starts to power down properly, but then the engine rolls over again? (not the best way to describe it, sorry!) anyway, its definitely something to do with the ignition circuit
The kill switch cuts power to the coil, which cuts power to the plugs. I don't think the switch is the problem. It sounds like it is dieseling, running on by itself. This is usualing caused by low octane fuel or improper timing. Sometimes if the the piston is very carboned, the carbon can get hot enough to ignite the fuel without a spark.
 

Last edited by FilthyLucre; Jul 31, 2009 at 12:33 AM.
Reply
Old Jul 31, 2009 | 12:06 PM
  #6  
81shovelflh's Avatar
81shovelflh
2nd Gear
Joined: Jul 2009
Posts: 6
Likes: 0
From: richfield, mn
Default

yeah, that sounds right i think the timing is off, plus the left side engine, carburater side valve stem is heavily carboned. off the subject, do you know what the proper oil temp for an 81 flh?, its not in any manual
 
Reply
Old Jul 31, 2009 | 07:21 PM
  #7  
FilthyLucre's Avatar
FilthyLucre
Road Master
15 Year Member
Joined: Jun 2008
Posts: 1,078
Likes: 39
From: NW Florida
Default

Originally Posted by 81shovelflh
yeah, that sounds right i think the timing is off, plus the left side engine, carburater side valve stem is heavily carboned. off the subject, do you know what the proper oil temp for an 81 flh?, its not in any manual
Oil temperature is dependent on ambient temperature, how the bike is driven, weight of oil and whether you have an oil cooler. Most of mine run between 175 and 210 running 70 wt with oil coolers. I live in S. FL.
 
Reply
Old Aug 6, 2009 | 11:11 PM
  #8  
Ironworker777's Avatar
Ironworker777
Stage I
Joined: Aug 2009
Posts: 1
Likes: 0
Default

can any body tell me if a 77FLH can run with out the circuit breakers?and what harm it can couse if any?
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-1

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-2

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

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

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-6

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-7

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-8

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
story-9

Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider

 Verdad Gallardo
Old Aug 7, 2009 | 03:26 PM
  #9  
81shovelflh's Avatar
81shovelflh
2nd Gear
Joined: Jul 2009
Posts: 6
Likes: 0
From: richfield, mn
Old Aug 7, 2009 | 04:56 PM
  #10  
FilthyLucre's Avatar
FilthyLucre
Road Master
15 Year Member
Joined: Jun 2008
Posts: 1,078
Likes: 39
From: NW Florida
Default

Originally Posted by Ironworker777
can any body tell me if a 77FLH can run with out the circuit breakers?and what harm it can couse if any?
If you have ever saw a bike short out and watch as your wiring harness melts in front of you while you despartely try to disconect the battery you will understand the benifit of circuit breakers.
 
Reply

Thread Tools
Search this Thread

All times are GMT -5. The time now is 08:43 AM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider

Slideshow: Graeme Billington's left-hand-drive Shovelhead is as much about problem-solving as it is about classic Harley form.

By Verdad Gallardo | 2025-12-30 11:27:08


VIEW MORE