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How do I wire new turn signals on a 83 XV 920. There are 3 factory wires. There are 2 wires on the new ones.

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See electricasl daigam in manual, could be the third is a wire for running lights

Posted on Nov 26, 2014


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Posted on Jan 02, 2017

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SOURCE: Turn signals have been disconected

is the wiring stowed near where the old signals were? if they are, is there a common color wire between all 4 signals?

if there isn't a common color and you are handy with a voltmeter (set to ohms with the buzzer on), you can ring them to ground (an unpainted frame bolt) to see which ones buzz. those that buzz to ground with the ignition off are the ground (negative) wires. the other is the turn signal wire.

the last step (assuming either the rear signals or front signals are a 3 wire system) is to find which wire is for running lights and which is for signals to flash. if you only have 2 wires at each signal, then skip this step.

set the voltmeter to DC volts (20v range is fine), turn the bike to the on position (don't start it), keep the turn signal switch off and place the positive lead of the voltmeter to one of the 2 remaining wires and the other to the ground wire (you just found out which is ground in the previous step) and see if the voltmeter jumps to at least 11 volts. if it does, then you have just determined which wire is the running lights wire. if it doesn't, then move it to the other wire to see if that makes the voltmeter move.

repeat at the other signals that have a 3 wire system.

good luck.

Posted on Feb 02, 2009

  • 56 Answers

SOURCE: 2008 Yamaha YZF-R6 turn signal wiring harnes

sorry.. i don't know off the top of my head but super simple way to check.. get an electrical tester that pierces the wire and turns on a light.. ($5 at walmart--seriously) turn on left signal, check the wires.. the one that is flashing is your left signal... so on and so forth..

(this tool will be super handy in the future also)


Posted on Sep 17, 2009

  • 4565 Answers

SOURCE: replacing signal lights on a 1992 sportster that

The two wire system is for a turn signal only unit. The three wire unit has a turn signal and a running light in it. Remove the turn signal lense and you'll probably see a dual filament bulb. The two wire system is shown as an "International" wired model according to my book. One wire is the "hot" wire (Brown) and the other is a ground or earth wire (black) on the bike. On the turn signal unit, probably all wires are black. You can use a VOM to determine which wire is the ground wire or you can just try hooking them up in different ways until you find one that works.

Posted on Sep 24, 2009

  • 8404 Answers

SOURCE: wiring diagram 83 honda shadow vt500

Check the generic service manual available at

Posted on May 06, 2010

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SOURCE: I am trying to replace

Before you take anything off or hook anything up, take the bulbs out of both turn signals. Look at the base of the bulbs and see if there are two or only one connections. I'm thinking you bike has rear running lights and the turn signal unit you are trying to replace it with only has the turn signal capability. Before you connect any wires, make sure the black and the blue wire on the bike are not touching anything metal. Turn the turn signal on and see which wire is hot. It probably won't flash but it'll go "hot" when you press the turn signal button. If they both only have one filament in the bulb, one connector on the base, then wire the blue wire on the bike to the black wire coming out of the turn signal. This would be my guess as the ground for the turn signal is a physical ground. If it doesn't work, try to connect the black wire to the turn signal body to make sure it's got a good ground. Now, there is the possibility that the turn signal will not work at all. Your bike is equipped with the automatic turn signal cancelling unit and they are very picky. It may sense the mismatch in the parts and not work at all.

Good Luck

Posted on Jul 22, 2011

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