A blown fuse can be a direct short to ground or over load of wiring used to prevent damage to the bike wiring/fire.
here is a wiring scamatic.
http://www.rattlebars.com/valkfaq/schematics/rpage03.htmlYOUR BIKE...
Brake light:
BROWN + : running/license plate light
GREEN - : ground
GREEN/YELLOW + : Brake light
Left turn:
Orange + : Left turn signal
GREEN - : Ground
Right turn:
LT BLUE + : Right turn signal
GREEN - : Ground
what is a 1147? show us a picture....
I seen 1157 dual bulb sockets..