My -99 Savage was working fine for a month after takeing it out from garage. Couple weeks a go it started to mess with me. It starts well, run on neutral normally and u can rev it on neutral/clutch down normally. BUT when u start moving and put little power to it, fuse (20A main) burns. Wires are ok and have covered them again, i have jumped on sattle while neutral and it doesn't burn it then. Also my horn died with dying sound at the same time. Regulator checked and ok. What next?  :'(
Thanks!

What wire(s) were burnt? -(colors and locations) , the fuse blowing should have protected that from happening.(fuses should on be 20amp)

kirurgi, sorry I misunderstood when you stated "wires OK have covered them again"  and "burnt fuse"  . fuses don't burn they blow or pop ,are terms we generally  use/hear,  and covered the wires again, made me think that the insulation had been burnt off/damaged. what you have is a dead short, a positive wire ,with bad insulation touching the framework of the bike( Grounding). this will try to send the entire 200+ amps of the battery through this wire to the negative post of the battery ,but it can't because the fuse will only allow 20 amps before it blows.so......first of all you should know that leaving the key turned on WITHOUT starting the bike, for an extend length of time can overheat the ignition module and ruin it, this can be avoided by removing the left side cover and unplugging it . second, check the wiring to the headlight as Verslagen stated, I'd even move the handlebar back and forth to check 'the wires running to the handlebar controls(they may be being pinched by the upper fork brace). third , because it only happens in gear I would check the wires from the neutral light switch ,they come out of the clutch side case between the oil sightglass and the case's clutch arm. You could also check the wires under the seat and tank for damage. (rear turn signals, and any that pass buy each side of the tank (flasher unit, spark coil unit ,horn , and the maze of wires and connector inside the headlight housing ,  for example)  Another place to look is behind the front drive pulley.wires from the pickup coil alternator and  I think the sidestand are bundled there and should be held by a guide so as to not be damaged buy the pulley.

Batman
Sorry for bad reference.  
Gotta unplug everything 1 by 1 and testdrive.
Thanks. I'll let u know when I find that bastard...