 elect probs
Let me know your exact model mate, and ill have a look at the circuit diagram when i get in from work. (im in the us at the mo, so you may get an answer by the time you get up in the morning).
Dc circuits are prone to poor earths, so check your cables and earth returns to the frame.
Look for any wires which are discoloured, this is a sign of overheating.
When your bike was running, was it running normally, ie lights and all other functions ?
Does the bike start ok, no problems ? does your bike have an alarm, if so which one ?
any accessories fitted to the bike ? ie aftermarket indicators, digi gears, or anything else ? quick shifter.
Think back to when your fuse blew...what were you doing at the time on the bike ?
Any info will help | 
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