I had the same problem on my SV, mine was a loose connection on the battery too :oops:
But I'm sure thats the first thing you checked

Ditto, loose battery connection. Happened to me before in a Chevy Suburban.

What did the garage say??

It could be a dodgy connection on the kill switch as I've known this to happen before.

Back from a weeks training course in SUNNY! Newcastle.
(thats the wet slippery sun that seems fairly common OPP NORF)

Rang the garage this morning and IT'S FIXED :P

However the bill was £150.00 :cry:

The problem was traced to the ignition switch.
When they got the switch off an opened the bottom they found:-
a black stained (overheated) green wire
an eroded away brass connecting pin.

there was also an in-line fuse on the Oxford heated grips that was showing some blackening around the input side and a burnt connection that has now been replaced

they saved all the bits for me to see before they binned them.

I am reasonably confident that they have found the immediate problem, but i'm not convinced about the root cause.

The choices are

a) that the two hot-spots are unconnected and that there was a poor contact in the ignition switch
that caused the failure
b) that the contact on the fuse somehow caused overheating in the ignition switch (but without blowing the fuse as the grips were working OK)
c) the ignition switch is not man enough to cope with the grips (which are wired to the spare way in the fuse box and so are controlled through the ignition switch.
d) I don't know

Opinions from the less electrically challenged members would be gratefully received!

I now have a two key bike, which I hate, mainly because I dislike anything flapping around on the top clamp.

Still at least I will not have to use the car for work on Monday!

Chris

Could you not have swapped the top part of the ignition barrel with the bottom part?