7.5 Key fuse Blowing out

I agree. If these bikes can loose total power over a 7.5 key fob fuse blowing mine won't be in my garage much longer. I've owned probably 30 street bikes and have never had a bike go cold & dark without any warning while underway.
 
Turbo's suggestion is right on. I have used self resetting blade style breakers, rated slightly below the circuit rating, to track down a stubborn grounded or shorted circuit. The breaker will cycle on and off allowing you to troubleshoot the circuit without melting it. I have even used a cheap compass placed over the wire to help track where the grounded circuit is (Did this on longer wiring runs on heavy equipment). When the breaker completes the circuit, before it trips, the compass needle jumps until the compass is placed past the defect. Here is a typical pic of the breakers I have in my tool box. You can get them in various amp ratings and physical sizes. They don't have to be this type.

 
Little story
I usually do not take on jobs like this but when it comes to a friend well!
Buddy had a car that would quit about every block needed new fuse.
So in with a 20 amp breaker fuse and about 2 blocks the engine stopped with ignition on i opened the hood and at the rear of engine sparking wire
(Grounding out) was so easy seen and hear turned out was a peice of cake to fix.
Moral of story is check it in the dark with breaker installed.
Hth herman
 
I am having the exact same problem. Taking to the shop twice. They can't fix it. Did you ever get yours fixed?