no lights after R&R upgrade

[Guest]

hi all,

so I installed a SH775 R&R on my old GS1000 '78 — it still had a separate regulator and rectifier and the cable mess that goes with it.
Installation went fine, have a solid 14V on the battery when idling, engine seems to be running smoother at low revs as well because of stronger sparks.

Only now, the lights aren't working anymore. No headlight, no high-beam, no taillight and no instrument lights. Brake light is fine, blinkers are fine.

https://dl.dropboxusercontent.com/u/608333/IMG_3148.JPG

These cables are left unused now -> the stator-cables used to go in here. The single green/white cable, I think, is the one that did the headlight loop. I'm unsure how much the POs have improvised with the electrics.

Any advise how to troubleshoot this? I have the electric schematics studied, but I'm not sure where to start really. Would appreciate any tips on where to start troubleshooting!

thanks!

[tom203]

Check for power at headlight fuse- should power "on" with ignition switch. Swap fuse with another 10 amp one in case it's fooling you.

[crookedspoon]

oh, right: thanks for the feedback. Forgot to mention that I checked the fuse. It gets power and the fuse is working!

[tom203]

Anything happen when you turn headlight switch " on/off" ?

[crookedspoon]

nope... light stays off, whether switch is on 'on' or 'off', high or low beam. No fuses are blowing either.
High-beam headlight flashing doesn't do anything either...

[tom203]

Is your wiring layout similar to this 79 gs850?

http://members.dslextreme.com/users/bikecliff/images/1979_GS850GN_wiring.gif

[Cipher]

I am no electrical guru but the headlight bypass thing may be the cause of this. It sounds like you have cut the circuit to the headlamp.

[crookedspoon]

I think I'm an idiot... will have to check again later when it stops raining — a cable to the fusebox (fuse for the lights) got disconnected while fiddling around.