Taillight fuse location

Where is the fuse location on an 85 700 air cooled maxim. Mine is putting out no voltage. Of course I checked the bulbs and they are good, and the brake light works fine. Its a fuse I am sure, but is the fuse box under the dash light panel (like on a virago 1100) all 4 screws on mine are stripped. So I'd like to be sure before starting this insane procedure of drilling out metal screws in a plastic housing.
Cool.
Srinath.

 

OK taillight has no fuse. Its not in the instrument panel and its not anywhere else, in short (no pun intended) its not there.
Yet my taillight isnt working and the brake light is working only cos there is a funky jumper (OK OK just a wire) from a grey wire which is part of a 3 pin plug to a yellow wire that is a single bullet connector going to the headlight.
So in short I am missing a section of the wiring harness and I have 1 wire rigged up making the brake light work. So any anyone tell me what makes the tail light work. AKA a wiring diagram pic.
Cool.
Srinath.

 

Srinath, as I recall there is a wire plug between the inner and outer fender for the tail light.
Maybe it came unplugged?

 

Here's a trouble shooting flow chart for XJ700N/NC models from the XJCD.
Hope it helps out srinath.

 

Thanks Nick.
That blue wire is like .16 volts (need 12+ right) so I guess main switch.
That 3 bullet connectors with blue, yellow and black wires are good and tight. Is there a different one ???
Cool.
Srinath.

 

Nick is the troubleshooting chart for the headlight similar or are there drastic differences? Thats where my problem lies!

 

Headlight is wired through that fuse in the dash.
Always the first stop.
Cool.
Srinath.

 

Here's some info on the XJ550 headlight troubleshooter as per the XJCD.