John you beat me to it !
Fuse 5 of the Rear Fuse box feeds out along a White wire with Blue tracer,
and runs directly to the Ignition switch.
There have been lots of reports of wires being pulled out of the Ignition Switch connector
due to tight wiring around the headstock area,
particularly when the handlebars are turned fully to the right.
To save more fuses, I'd try some checks with a multi meter, with the battery disconnected,
and see if the fault shows up on the output side of the fuse - shorting to ground
and if there is any difference when the handlebars are turned.
I'd bet a Pint that this is your problem !
Plenty of information in this Topic :
Ignition Wiring FailuresThere are other Topics about this too, but that is the main one
and should have most of the information needed !
Cheers,
