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  #1  
Old 17th November 2019
npaisnel npaisnel is offline
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Default 1993 XLH883 Ignition switch Wiring

Here is a picture out of the Haynes Comic for the Sportster 93-94 wiring diagram..particularly the ignition switch.

I thought the operation of the switch on the bike was weird.
The switch has three positions..Off and Pos 1 and pos 2

Both positions after 'OFF' both allow the bike to run and turn on the lights.

Original wiring, 93 bike with only 2504 miles on it .


Not yet taken the switch out so see if some one has tinkered with it..added another jumper wire between the two terminals labelled 'IGN' in the diagram. That would explain what I am seeing on the bike. Or are the two terminals that are labelled IGN already internally connected in the switch? but not shown on the diagram?

I tried the Harley SIP site, and no diagram on there..just generic 93-94 wiring info



When i first got the bike I noticed the two positions and asumed that someone had maybe tinkered with it to have lights come on in first position.

What I was exepcting to see was
Off
Bike Run, no lights
Bike Run with lights ON.



Does anyone have the original Harley Factory wiring diagram for a 93 XLH 883 that they could look at to see what that shows.

When I have more time I am minded to strip the ignition switch and have a look, and wire it so first position is IGN Only and second is IGN and Lights.

But if any one can scan / take photo of OEM wiring of the switch that would be much appreciated.

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  #2  
Old 17th November 2019
sportsterdoc's Avatar
sportsterdoc sportsterdoc is offline
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Default

For most years:
First position should be accessories: horn, turns and brake lights
Second position should add lights and ignition

See post 13 for your year
http://xlforum.net/forums/showthread...cs#post5359722
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  #3  
Old 17th November 2019
npaisnel npaisnel is offline
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Default

Ah interesting ..the haynes wiring diagram does not show that. It just shows first position as Lights only

Will head over to the post you link to now
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  #4  
Old 17th November 2019
npaisnel npaisnel is offline
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Default

The 2nd paragraph says it all!

Quote:
Originally Posted by IXL2Relax View Post
According to my schematics, from 91-93, the output wires from the two positions of the keyswitch were jumpered together - at the keyswitch and at the circuit breakers - which made the keyswitch a simple on-off switch... All circuits were ON or OFF... The reason for this was to create an always on Headlight which was mandated in California (but HD implemented it on all their versions)...
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Old 17th November 2019
npaisnel npaisnel is offline
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Default

I'll re wire mine I think.
Either with a separate lights on/off switch, or just have first position doing ignition. and accessories, last position all the above plus lights
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  #6  
Old 17th November 2019
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Point of Interest...decades back the NHTSA set some sort of regulation requiring a 3-position Ign. switch. Harley "fudged" on this and had a "off/run/empty" switch. Some years were off/park light/run, some were off/ run without lights/run with lights. They settled on Off/Park-Acc/ Run with Lights in the later years. If you look thru old service manuals, on the ign switch wiring, you'll see a lot of conflicting wiring diagrams and stuff that just doesn't make sense.
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Old 17th November 2019
npaisnel npaisnel is offline
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Yes, I am finding that out !
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Old 17th November 2019
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I always thought the Off/Run without lights/Run with lights..was the best set-up. I don't see a necessary position for Acc unless the bike has points.
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Old 17th November 2019
npaisnel npaisnel is offline
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That’s how I remember my bikes always being, or with lights on handlebar switch. Off/side/main
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Old 17th November 2019
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Quote:
Originally Posted by Toejam503 View Post
I always thought the Off/Run without lights/Run with lights..was the best set-up. I don't see a necessary position for Acc unless the bike has points.
The Off-Acc-On configuration came about in 1994... It was implemented to allow the 4-way flashers to operate without the rest of the Ignition/Lighting circuits (esp. Headlight) pulling power... This allowed 4-way flasher operation alone to run for as long as the battery had power while you sat on the side of the road waiting for support...

The old, Off-Ign-Lights, configuration was necessary for many/most kick starts to allow as much power as possible for the spark... But it also allowed running the bike without lights, which was eventually determined to be a BAD safety practice...


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