XS400 Electrical Questions

[jrolfe]

So I’ve found an XS 400 local for $300. The seller believes there’s a short somewhere in the wiring, they claim they were riding when it happened and they actually got shocked and then the bike died and has no power to anything now (assuming whatever happened popped the main fuse)

You guys have any ideas on what could cause this? Voltage regulator or coil gone bad?

Bike itself doesn’t appear to be in bad shape physically. What are your guys thoughts? Going to take a look at it tomorrow morning

 

[tstidham]

It's probably the three white wires from the alternator that run to the rectifier. Where they exit the alt. cover down by the shifter they can get pretty brittle and short out, then you'd have direct AC voltage getting pumped into the frame. I think it's something like 36 volts from each wire? (but don't quote me on that). There was another post on here of a member soldering on brand new marine wire (I think from west marine) to repair his.