Friends 2001 s4 keeps blowing main fuse

[sebastienb]

A friend just called me to ask for help trying to identify why his s4 keeps blowing the main fuse. He was riding last night and 2 miles from getting home the bike just died on him. Everytime he replaces the fuse it blows as soon as he turns on the ignition.

Is this maybe a common problem with the s4 ?

[Speeddog]

Which fuse is it blowing?

The big 40 amp one?

Or one of the fuses in the fuse box?

[sebastienb]

Sorry for the late reply, it was the main fuse but he took it to a shop.