Today, I changed the main fuse.
Very strange. The bike was running fine when I last parked it.
This morning when I turned on the key....nothing.
After checking the kill switch (which was in the run position) I checked the battery.
12.8 volts and this is after sitting overnight at around 45 degrees F.
Checked all three fuses and two were good, one (the main power fuse) was blown.
After replacing the fuse with the spare that is included inside the plastic fuse housing I crossed my fingers, turned on the key and all was well.
I then did a 30 mile ride and everything is working fine.
Although it could be a wire shorting out somewhere I suspect that after over a year and a half of riding, that fuse just got tired of carrying the power load.
To be on the safe side, I bought some spare fuses at the local auto supply store and hope that I never have to use them.