Ducati Monster Forum

Moto Board => Tech => Topic started by: Howley on September 14, 2011, 05:41:25 AM

Title: Single wire vs dul wire indicator
Post by: Howley on September 14, 2011, 05:41:25 AM
So what's the difference between single wire and dual wire indicators (turn signals)? My bike currently has dual wires, can I make single wire ones work?
Title: Re: Single wire vs dul wire indicator
Post by: corey on September 14, 2011, 10:42:02 AM
???
there has to be two wires... positive and negative...
a "single wire" indicator likely has two wires wrapped together that split at a plug of some type.
Title: Re: Single wire vs dul wire indicator
Post by: Howley on September 16, 2011, 05:15:04 AM
Nope they definitely exist. I think they might ground through the mount.
Title: Re: Single wire vs dul wire indicator
Post by: ducpainter on September 17, 2011, 03:57:13 AM
Quote from: Howley on September 16, 2011, 05:15:04 AM
Nope they definitely exist. I think they might ground through the mount.
exactly...

You might get front single wire units to work, but in the rear there's no metal where they mount.
Title: Re: Single wire vs dul wire indicator
Post by: Howley on September 17, 2011, 06:04:18 AM
Could you run a ground from the body of the indicator to the ground for a two wire setup?
Title: Re: Single wire vs dul wire indicator
Post by: ducpainter on September 17, 2011, 06:11:06 AM
Quote from: Howley on September 17, 2011, 06:04:18 AM
Could you run a ground from the body of the indicator to the ground for a two wire setup?
absolutely...

you'd just need the right size ring terminal to fit the mount stud.
Title: Re: Single wire vs dul wire indicator
Post by: Howley on September 17, 2011, 04:00:58 PM
Ah! A ring terminal is a great idea!
Title: Re: Single wire vs dul wire indicator
Post by: ducpainter on September 17, 2011, 04:09:41 PM
Quote from: Howley on September 17, 2011, 04:00:58 PM
Ah! A ring terminal is a great idea!
That's why I get the big bucks. ;D
Title: Re: Single wire vs dul wire indicator
Post by: errazor on September 18, 2011, 02:45:50 PM
If the single wire turn signal is a LED light you must confirm to Carbon 14`s post.
If it is a incandescent bulb it does not know the difference between + &- and you can rely on DP`s post.
Title: Re: Single wire vs dul wire indicator
Post by: Howley on September 18, 2011, 03:09:47 PM
Thanks for the heads up guys, I'll check that out.
Title: Re: Single wire vs dul wire indicator
Post by: Howley on September 19, 2011, 05:36:15 AM
Rad, thanks for doing that. A plan is formulating... :P
Title: Re: Single wire vs dul wire indicator
Post by: ducpainter on September 19, 2011, 06:15:51 PM
Quote from: Carbon 14 on September 18, 2011, 08:08:41 PM
Not true.  If you had a switched ground neither would work.  With a switched positive either would work.  It is true with LED's the polarity has to be correct.

Good news:  I checked both of my bikes and they both have a switched positive and common grounding.  If your bike is the same you can use a single-wire light with a frame ground.

I wasn't blowing smoke when I said it would work.
Title: Re: Single wire vs dul wire indicator
Post by: Howie on September 19, 2011, 08:52:02 PM
Quote from: Carbon 14 on September 18, 2011, 08:08:41 PM
Not true.  If you had a switched ground neither would work.  With a switched positive either would work.  It is true with LED's the polarity has to be correct.

Good news:  I checked both of my bikes and they both have a switched positive and common grounding.  If your bike is the same you can use a single-wire light with a frame ground.

A switch can be on the positive on negative side of an incandescent bulb.  As long as the circuit is complete when the switch is closed the bulb will light.
Title: Re: Single wire vs dul wire indicator
Post by: Howie on September 20, 2011, 06:02:34 AM
Quote from: Carbon 14 on September 19, 2011, 10:01:39 PM
Absolutely true but if the ground is the switched side and you go to a frame ground the light would be on all the time.  Incandescent or LED no difference.

Anyhoo like I said I checked both of my bikes and they are both positive-switched.  OP should check before purchasing though.

If you mean mounted directly to the frame with no ground wire, yes.
Title: Re: Single wire vs dul wire indicator
Post by: errazor on September 21, 2011, 08:30:10 AM
The point is that if you have a LED light it is important that + &- is correct.
A bulb will light anyway a LED only if the polarity is correct.
Title: Re: Single wire vs dul wire indicator
Post by: Howley on September 24, 2011, 03:50:38 PM
I checked my wiring diagram and they are all switched positives.