ignition fuse short

[newbeginingsxs400]

when i go to kick my bike my ignition fuse pops after one-two spark cycles on the plugs.my regulator also gets warm for some reason? im running a sliced wirring harness but i dont thinnk thats the problem because it ran fine for a while, anyone have any ideas on why its shorting?

my wirring diagram is this one by silverkrown
https://www.xs400.com/threads/simplified-wiring-harness-question-about-regulator.12254/

thanks
-g

 

[OleDoc2]

Check all of your wiring and look for any bare or melted wires.

 

[tstidham]

Especially in the headlight bucket. Hot wires near a hot bulb can be exciting!

 

[newbeginingsxs400]

Im 90% sure its not my wiring, but it just does not make sense. i have 2 sets of wiring and they both have the same result...

Especially in the headlight bucket. Hot wires near a hot bulb can be exciting!

(headlight is a different circuit and not plugged in.)

would spark plugs arcing cause this issue?

 

[OleDoc2]

Spark plugs shouldn't cause this issue. @tstidham isn't talking about the headlight circuit. He's talking about all of the other sites that are inside. Look for any bare wires or melted ones. A loose or corroded ground can also do this.

 

[newbeginingsxs400]

Spark plugs shouldn't cause this issue. @tstidham isn't talking about the headlight circuit. He's talking about all of the other sites that are inside. Look for any bare wires or melted ones. A loose or corroded ground can also do this.

thanks, my headlights are not part of my original wiring and are not connected. None of my wires are exposed or melted. I'm now looking at different theories.