PDA

View Full Version : '81 Yamaha XJ 650 Wiring Help Needed



dcase81bobber
10-24-2009, 8:28 PM
I'm looking for a "minimalist" wiring set up for my xj 650. Anyone out there have any good diagrams, advice, etc... All I'm looking to have wired up is a head lamp, brake lamp, horn and ignition. Any help would be much appreciated.
DC

SteveO
10-25-2009, 6:27 AM
I don't know if this will help, but here is what I used to wire my KZ750 twin. I wired exactly what you are wanting to do (well, haven't gotten around to wiring the horn yet).

Hobbes
10-25-2009, 7:10 PM
http://www.currentobservations.us/images/Minimum%20Wiring%20Diagram%20for%20XJ%20Series.jpg

Not sure if this image is accessable, 'cause I is bad with computers.

Make sure to study the wires on your reg/rec, igniter box, and pickup plate before disconnecting, cause they may not match the units in the diagram or manual you have. Early Jap electronics are numerous and inconsistent, in my experience. Also note that the diagram in the link has no horn, and uses the stock keyswitch with the stupid 'park' position and no on/off for the headlight/taillight (daytime running was mandated in '78?)

earz
10-25-2009, 11:29 PM
here's the stock wiring diagram

http://img.photobucket.com/albums/v230/earz_cd/xj%20bikes/th_XJ650wiring.jpg (http://smg.photobucket.com/albums/v230/earz_cd/xj%20bikes/?action=view&current=XJ650wiring.jpg)

and here's my slimmed down wiring - still has indicator lights and horn

http://img.photobucket.com/albums/v230/earz_cd/xj%20bikes/th_XJ650wiringFINAL.jpg (http://smg.photobucket.com/albums/v230/earz_cd/xj%20bikes/?action=view&current=XJ650wiringFINAL.jpg)

unfortunately - I can not get them to show full size so it makes them hard to read. PM me your email address and I can send the full sizes to you if youre interested.

coachstorms
10-26-2009, 9:24 AM
try this-

http://www.youtube.com/watch?v=ksX8jmgJe3s

http://www.youtube.com/watch?v=i8mnmH59Azc

earz
10-26-2009, 11:24 AM
try this-

http://www.youtube.com/watch?v=ksX8jmgJe3s

http://www.youtube.com/watch?v=i8mnmH59Azc


Wrong bike. He has a XJ not an XS. While the videos are very informative, very little applys to the 4cyl, electric start only, electronic ignitioned XJ series.

coachstorms
10-26-2009, 11:48 AM
oops...won't post again till i figure this whole reading deal. Well, now at least the guy can wire the snot out of an XS at least right?

dcase81bobber
10-26-2009, 3:27 PM
Thanks.

Junkshow
10-26-2009, 3:50 PM
Try these links, one for the ignition and one for the charging system. This is what i used on my 1980 and i am running a mini .8 amp hour battery and LED Turn/Tail lights no problem.

http://www.cyclepsycho.com/yamachopper/wires/chargingsystem.

http://www.cyclepsycho.com/yamachopper/wires/1983xsa1.jpg

earz
10-26-2009, 11:01 PM
He's got a XJ650 - not an XS. Totally different bike.

marckwire
10-31-2010, 3:27 PM
here's the stock wiring diagram

http://img.photobucket.com/albums/v230/earz_cd/xj%20bikes/th_XJ650wiring.jpg (http://smg.photobucket.com/albums/v230/earz_cd/xj%20bikes/?action=view&current=XJ650wiring.jpg)

and here's my slimmed down wiring - still has indicator lights and horn

http://img.photobucket.com/albums/v230/earz_cd/xj%20bikes/th_XJ650wiringFINAL.jpg (http://smg.photobucket.com/albums/v230/earz_cd/xj%20bikes/?action=view&current=XJ650wiringFINAL.jpg)

unfortunately - I can not get them to show full size so it makes them hard to read. PM me your email address and I can send the full sizes to you if youre interested.

Hi Man could you please send an e-mail with the full size images of this diagram. I'm really interested. Thnks

exlizard_king@hotmail.com

Inkster
04-03-2012, 10:49 AM
I've been tryin to send you a private message, but I'm on my phone and having some trouble. My email is jay.gosnell at live if you can could you please send the wiring diagrams? and I have a question, when I got my bike which is an 81 xj 650 out would fire but when you let off the start button it would die, so I started checking all the wiring and found the start button and kill switch were wired together, so I think I figured out what the problem is, but don't know how top fix it



here's the stock wiring diagram

http://img.photobucket.com/albums/v230/earz_cd/xj%20bikes/th_XJ650wiring.jpg (http://smg.photobucket.com/albums/v230/earz_cd/xj%20bikes/?action=view&current=XJ650wiring.jpg)

and here's my slimmed down wiring - still has indicator lights and horn

http://img.photobucket.com/albums/v230/earz_cd/xj%20bikes/th_XJ650wiringFINAL.jpg (http://smg.photobucket.com/albums/v230/earz_cd/xj%20bikes/?action=view&current=XJ650wiringFINAL.jpg)

unfortunately - I can not get them to show full size so it makes them hard to read. PM me your email address and I can send the full sizes to you if youre interested.

interstatejoe
04-03-2012, 11:09 AM
Here's the diagram I used. I goofed on the brake light though... the brown wire going to the brake switches should hit the empty 10amp fuse instead
http://i1107.photobucket.com/albums/h383/joefenech/coloredwiring.jpg

And a close up on the pickup coil/tci wiring
http://i1107.photobucket.com/albums/h383/joefenech/cdi_and_pickup.jpg

Sent from hell using Tapatalk

interstatejoe
04-03-2012, 11:19 AM
when I got my bike which is an 81 xj 650 out would fire but when you let off the start button it would die, so I started checking all the wiring and found the start button and kill switch were wired together, so I think I figured out what the problem is, but don't know how top fix it

The start/ignition button is momentary, so if your kill switch is wired to your start button it would cut power as soon as you let go.

Sent from hell using Tapatalk

Inkster
04-03-2012, 9:32 PM
That's what it's doin, I figured that out pretty quick, but I haven't figured out how to fix it that's the problem


The start/ignition button is momentary, so if your kill switch is wired to your start button it would cut power as soon as you let go.

Sent from hell using Tapatalk

earz
10-10-2013, 9:38 PM
here's the stock wiring diagram

http://img.photobucket.com/albums/v230/earz_cd/xj%20bikes/th_XJ650wiring.jpg (http://smg.photobucket.com/albums/v230/earz_cd/xj%20bikes/?action=view&current=XJ650wiring.jpg)

and here's my slimmed down wiring - still has indicator lights and horn

http://img.photobucket.com/albums/v230/earz_cd/xj%20bikes/th_XJ650wiringFINAL.jpg (http://smg.photobucket.com/albums/v230/earz_cd/xj%20bikes/?action=view&current=XJ650wiringFINAL.jpg)

unfortunately - I can not get them to show full size so it makes them hard to read. PM me your email address and I can send the full sizes to you if youre interested.

I've gotten several requests for the full versions of these diagrams. I'm not on CC very often anymore, but wanted these to be accessible. Here's the links to the full versions

XJ650 factory wiring (https://docs.google.com/file/d/0B4LSYQDOdFBLeGtSRXlxS01tLTg/edit?usp=docslist_api)

XJ650 bare minimum wiring (https://docs.google.com/file/d/0B4LSYQDOdFBLYjE5YnQyWWF3ODA/edit?usp=docslist_api)