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:

Kill Switch Question

Thread Tools
 
Search this Thread
 
Old Aug 28, 2008 | 08:33 AM
  #1  
Sketz's Avatar
Sketz
Thread Starter
|
Cruiser
Joined: Aug 2008
Posts: 181
Likes: 0
From: Territory of Tucson
Question Kill Switch Question

I did a search on Kill Switches but couldn't find an answer to my question which is: What is the purpose of using the kill switch for turning the bike off? I've been riding 40+ years and never use the kill switch for this purpose, I was always under the impression that it's main purpose was to "kill" the bike in an emergency (laying it down). The main disadvantage of using it in my opinion is that you may forget to turn off the ignition switch causing the battery to run down (which in my case it's called a "senior moment"). I noticed that in the manual of my new '08 RK it does state: "use the kill switch to turn off the bike". Is there any technical reason that one should do this rather than just using the ignition switch?

Thanks,

Ride save
 
Reply
Old Aug 28, 2008 | 08:42 AM
  #2  
AISTQM's Avatar
AISTQM
Tourer
Joined: Jun 2005
Posts: 472
Likes: 11
From: Erie, PA
Default

Well I'm not sure about this and I'm no electrical guru but I think I remember reading once that using the kill switch eliminates the load on the ignition switch thereby eliminating any arcing of the contacts in the ignition switch when you turn it off.
 
Reply
Old Aug 28, 2008 | 08:52 AM
  #3  
OD_Cleaver's Avatar
OD_Cleaver
Cruiser
Joined: Feb 2008
Posts: 186
Likes: 2
From: Minnesota
Default

I have two reasons that I use my kill switch:

1. Flipping the kill switch is part of my start routine. There is always that dip stick in the crowd that like to flip the switch on a parked bike to see that look on your face when the bike doesn't start.

2. The action of using the switch helps to keep the contacts clean. If you ever need the switch, it will work.
 
Reply
Old Aug 28, 2008 | 08:54 AM
  #4  
Bertk's Avatar
Bertk
Ultimate HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Mar 2008
Posts: 5,788
Likes: 203
From: SW Florida
Default

I never use the kill switch either. For years now HD's has had a tip sensor that kills the engine if the bike is lay down or falls over while running. It's personal preference.
 
Reply
Old Aug 28, 2008 | 08:57 AM
  #5  
Wassup8687's Avatar
Wassup8687
Club Member
Joined: Jun 2008
Posts: 17,717
Likes: 1
From: NY
Default

My dealer told me to use it or it may stop working.
 
Reply
Old Aug 28, 2008 | 09:06 AM
  #6  
Bertk's Avatar
Bertk
Ultimate HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Mar 2008
Posts: 5,788
Likes: 203
From: SW Florida
Default

Originally Posted by wassup8687
My dealer told me to use it or it may stop working.
Now that's funny.
 
Reply
Old Aug 28, 2008 | 09:12 AM
  #7  
artt's Avatar
artt
Cruiser
Joined: Jan 2008
Posts: 173
Likes: 1
From: New York
Default

All of the above seem to me to be interesting and valid reasons for having a kill switch mounted on the bike. I have to wonder though, if the primary reason isn't a question of liabilty and or requirement by law. Color me cynical but this seems a motivation for the various MC manufacturers to spend the money on safety features rather than solely out of the goodness of their heart. Generally speaking, it makes sense to me to have redundant safety features even something as simple as to points of egress on a cage or in a house.
 
Reply
Old Aug 28, 2008 | 09:19 AM
  #8  
ngoti8tor's Avatar
ngoti8tor
Outstanding HDF Member
Joined: Jul 2008
Posts: 2,206
Likes: 0
From:
Default

Originally Posted by Sketz
I noticed that in the manual of my new '08 RK it does state: "use the kill switch to turn off the bike". Is there any technical reason that one should do this rather than just using the ignition switch?
The main reason is because your manual says to use it.
 
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 28, 2008 | 09:29 AM
  #9  
ord sgt's Avatar
ord sgt
Grand HDF Member
Veteran: Air Force
15 Year Member
Liked
Community Favorite
Joined: May 2007
Posts: 4,007
Likes: 159
From: Mount Laurel, N.J.
Default

I use both switches as part of the shut down and re-start sequence. Just a series of steps I go thru, kinda like a habit. Same steps every time. That way, I never forget anything.
 
Reply
Old Aug 28, 2008 | 09:54 AM
  #10  
pokeraddict's Avatar
pokeraddict
Cruiser
Joined: Mar 2008
Posts: 186
Likes: 0
From:
Default

The contacts will corrode over time if the switch is not used. I always use the kill switch.
 
Reply



All times are GMT -5. The time now is 08:07 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