cl360 voltage regulator ground... to what?

[naphtaliq]

So i take everything apart, clean off the parts, replace wires where they look frayed and am a good way to restoring this bike... but I can't figure out where the ground wire coming out of the voltage regulator is supposed to ground to. Where was this originally attached? I can make a place for it to ground but I want to get this bike back to regular operating condition before I start chopping or bobbing it... HELP!

 

[Big R]

I believe it's to the frame or the battery box.

 

[crazypj]

Should bolt to the bottom of battery box or back of toolbox, depending on model year.
Grounds through the mounting bolt.
I believe it has to be rubber mounted, if the case is grounded it shorts out? (read it somewhere)

 

[naphtaliq]

awesome thanks