Motorcycle Repair: harley repair, fuel gauge, loose connection

Question
I have a Harley soft tail 2006 efi 1450 cc.  After about 20 minutes of riding, it will not idle, speedometer, blinker, and fuel gauge won't work. I recently had the battery replaced.  I have only 995 miles on it.  

Answer
SInce your lights wont work that would lead me to think you have a short in your wiring. You would have to trace the wiring that goes to the items that dont work and see if there is a short or loose connection. Low voltage will make your bike not idle correctly
Good luck and happy riding
Mike