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View Full Version : What to do with the blue wire? Another XS Wiring question...



bdbecker
01-13-2010, 8:43 PM
So I've searched high and low on at 3 different forums for a simplified/chopper wiring diagram that will work for my 1979 XS650, and it seems to be the bastard year when it comes to wiring diagrams. Everything I've found for points bikes only show 3 white, 1 yellow, 1 black, and 1 green wire coming off the stator. For my '79, I have all of the above plus a blue wire. The wrenching and fab parts of bike building I have covered, but when it comes to electrical systems, I will admit that I am a moron. Maybe someone here can point out what I'm missing... Thanks in advance!

Punkskalar
01-13-2010, 8:50 PM
Cut it short, cap it off and forget it

viz
01-13-2010, 9:08 PM
Blue wire was the neutral safety light I think. You dont need it for simplified wiring though. Yellow will not be used either

philbey
01-13-2010, 9:32 PM
while we're on the topic then, what is the yellow wire for?

viz
01-13-2010, 10:08 PM
not completey sure but I think it was a safety relay wire? I do know for sure you dont use it.

bdbecker
01-14-2010, 9:12 AM
You guys rule!

Punkskalar
01-14-2010, 10:25 AM
Yep, don't use it either. I make a seperate harness for the charging system, with 1 "hot" or red wire feeding it, and then 1 to the battery...

philbey
01-14-2010, 7:20 PM
Yeh cool. I'll be getting into my wiring soon so I'll soon find this all out.

earz
01-15-2010, 3:30 AM
Blue wire was the neutral safety light I think. You dont need it for simplified wiring though. Yellow will not be used either


not completey sure but I think it was a safety relay wire?


Correct indeed

Sky blue wire = neutral light
yellow wire = safety relay

Jashole
01-18-2010, 1:54 PM
Correct indeed

Sky blue wire = neutral light
yellow wire = safety relay

:)))

bdbecker
01-18-2010, 4:40 PM
I found a solid state regulator/rectifier setup that looks like the bee's knees - looks similar to the one MikesXS sells, but until the end of Jan, it's 15% off.

http://shop.hyperformanceparts.com/productdetail.htm?productId=7870519&ez=ElectroSport%20Industries~q=bidaa1783zz~r=~&rand=59013

viz
01-18-2010, 5:35 PM
Nice find