I've tried both those methods... a bit wary of too much heat with the electrics so close behind the flywheel
I'm assuming the key sheared and the flywheel continued moved round the shaft dragging what's left of the key with it.
The bike was running (after 20+ years in a shed) then suddenly stopped
Now it just kicks back through the kickstart
So i'm left with maybe a makeshift attachment for a half shaft puller?
Or cut the flywheel off - if thats possible?
But i'm open to other suggestions