Wiring Diagrams

Here is a collection of wiring diagrams I have accumulated threw the years. These are Virago specific but they can be easily adapted to your needs.

Posted: Sat Mar 03, 2007 2:01 am Post subject

Have you ever run across an 81 with a different diode? I have one with a different plug and 6 wires on it, that doesn't match the posted wiring diagrams. Just fishing for thoughts......

Posted: Sun Mar 04, 2007 10:11 am Post subject

dr_korb wrote (View Post): › Have you ever run across an 81 with a different diode? I have one with a different plug and 6 wires on it, that doesn't match the posted wiring diagrams. Just fishing for thoughts......

When you say "diode" do you mean rectifier?

Posted: Sun Mar 04, 2007 5:13 pm Post subject

it is a diode pack. not sure of exact function. involves oil sensor, kick stand switch, neutral switches,etc

Posted: Mon Mar 05, 2007 8:23 am Post subject Re: [ KB ] Wiring Diagrams

This one here, POL:

Posted: Mon Mar 05, 2007 9:51 am Post subject

Well, that one has got me stumped. Never seen that before. After much research I have deciphered that it monitors for the most part but does have some control of the oil light. After studying the diagram, I would say that for the most part it is useless. It you remove it and run a jumper between the two black wires your oil light will still work as normal and eliminate it entirely. What kind of problems are you having.

Posted: Tue Mar 06, 2007 2:24 pm Post subject

No problems with that really, just that the sky blue wire is also tied to the neutral light and neutral safety switch. The problem came on my 83, when I smoked the diode on that circuit, and said to myself, "Self, that isn't a big obstacle, as I have a wiring harness from an 81 sitting on the bench." Only thing was, when I took the diode assembly off the 81 harness, it only had 6 wires, and a different plug, so it was useless. I just wondered if anybody else had ever seen that, since these are the only wiring diagrams I have seen floating around. I may look at some of the other 80 model and early 81 model yamahas and see if this is some kind of model year/type carryover from something else until the real stuff came on the production line.

Posted: Tue Mar 06, 2007 10:06 pm Post subject

it is an AND-OR circuit.
using diodes to do it.

Posted: Thu Sep 13, 2007 8:11 pm Post subject Re: [ KB ] Wiring Diagrams

For anyone interested, I was trying to decypher some ignition problems on an 84 1000 and noticed the 84/85 700-1000 Haynes diagram (the one in the wiring diagrams KB) is out - way out.....

So with the help of the genuine Yammy diagrams I have rubbed out the incorrect wires and drawn in the correct ones.

Anyone who was trying to trace a fault may have discovered that there was acutally NO power to the ignition system after releasing the starter button, which would have been difficult in itself since the only thing powering the starter relay was the regulator/rectifier, and the ignition and headlamp power circuits were both running off the signal fuse!!!

Hope this helps someone, cheers, Dave.

PS - Matthew, want to add this to the list of diagrams?

84_85_FIXED_XV700_XV1000.jpg Wiring Diagram (Haynes)

Posted: Thu Sep 13, 2007 9:23 pm Post subject Re: [ KB ] Wiring Diagrams

sure if it wasn't password protected, it wants me to log in.

Posted: Thu Sep 13, 2007 11:52 pm Post subject

Oops.. forgot about that!!

Matthew, I PM'd you the user/p-word, if anyone else wants it send me a PM. Just keeping them out of the general publics eyes and for enthusiasts only.

Posted: Sun Apr 19, 2009 1:17 pm Post subject

One of those wiring diagrams in the top part of the tech article was created by me. The bottom one is my wiring diagram. The others are modified versions of my original. I don't mind it being posted but give the credit where it's due.

Posted: Sun Apr 19, 2009 1:22 pm Post subject

Good job, Scotsman..

Posted: Sun Apr 19, 2009 6:45 pm Post subject

Sorry, Scott. Plagiarism was not an intent just passing info, I apologize for using yours, although it being 2 years old, I don’t remember even posting this, Sorry Mate!

Posted: Mon Apr 20, 2009 12:11 pm Post subject

At first I thought it was the one that I had created for my chopper, but that is actually one that I had made for Bykrmom for her 920.
It's all good, I hope it has helped some folks.

Posted: Mon Apr 20, 2009 12:19 pm Post subject

More than you know!

Any thing i can do to jog your memory on the rev limiter?