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hi, have a 03 heritage softail checked bike over yesterday for a morning ride today. everything good lights brakesw ran great. today turned on ignition and only head &tail light on bike starts and runs. have no dash, brake ,signal lights. every time i turn ignition on the 15 amp fuse blows. tried this 2 times. i am thinking ign.switch went bad overnite. any other ideas are very welcome thanks

When a fuse blows like that you are shorting to ground. Have you done any recent mods to the bike? You should check those first. After that I would start taking bulbs out one at a time until it stops blowing. At least then it would give you some idea which wires to check.

light
 

no mods, everything worked fine yesterday afternoon.

check for frayed wire shorting against frame somewhere in the wire path

I would try using an ohm meter to see if the lights, ignition switch etc is shorted to ground that shouldn't be.