| Fuses blow because something is drawing too much current - and that's usually because a connection is touching earth when it shouldn't be, or some component is breaking down and has shorted to earth.
Because it's only happening when it has been left, it sounds to me like it's the alarm/immobiliser circuit which is arming once the bike has been switched off, and it's then shorting and killing the fuse.
Either that or because you're putting the bike onto the steering lock, it's pulling on a lead or rubbing against something which is causing the short.
Talking to Mitch at TecMoto the other weekend, he was moaning that the wiring on the 999 series is really, really tight. We laughed that it was the Italians obviously trying to save money by shortening their cables, but there may well be some truth in it!
As DCR says, check the wiring in the cockpit as something might be catching and shorting. If that all looks ok, leave the fairing off so you can see the fuse, park it up and watch what happens. If the alarm/immobiliser comes on and the fuse pops - there's your problem.  |