To Diode or not to Diode?

[The Voyager]

Hi. Good day.

Lengthening my loom as its all being tucked away in a new compartment.

Got 2 diagrams so doing my homework. One from manual and one from a stripped down version.

Now. Diode. I can work out if I need this one. It goes I think it links to various connections up front of bike.

I understand Diodes to make a current travel in one direction only but not sure how this relates to me.

Any help appreciated.

[eastanglianbiker]

does the standard loom have them fitted if not then they are not needed so as you have wiring diagram you can make your own loom to the lengths you need including anything that it says is included in the original loom,ive built chops in the past and made looms up as needed following wiring diagram and making everything to the length i need depending on where things were placed

[The Voyager]

It does yes. I'll just keep it in. Only small. Just more work.

Haha

[Fozzie]

If they put one in the original loom you need one in the new one.

Sometimes it will be because the line intersects with another part of the circuit and it will be controlled so that only certain parts of it are able to energise without the others despite being on the same line.

But generally it's just basic component protection and the components it is near likely won't respond well to even a little spike in the wrong direction.