I'm sure this is very simple but I'm not smart when it comes to many things. My question is if I have a 4 position 4 pin ignition key switch (acc/off/on/ignition) (in attached picture)can I switch it to (off/on/acc/ignition)? How would I do that? Is it as easy as switching the wires or is the off connection not a through or a grounded connection inside the switch itself?
I'd preferably like to find a 12v 3 position key switch that's (off/on/on+acc) and is all fixed positions not two fixed and one momentary position if that makes sense because I want to be able to go from power off/ to power on & lights off to/ power & lights on for my motorcycle but am having trouble finding a 12v key switch that is like this all of them are either 2 pos. (Off/on), 3 pos. (Off/on/ign), or 4 pos. (Acc/off/on/ign)
And all the 12v 3 position toggle switches are (on/off/on) so even if I didn't want to use a key which I do I still can't find a switch that'd work.
Can anyone tell me what type of 12v key switch I'd need or how I would need to wire what ever type of 12v key switch to be in the series I want them to be please. I'm about ready to give up.

 

It's hard to follow exactly what you are asking or looking for, but I think I got the gist.

Most motorcycles that I have experience with (which is just a few and a few decades ago) the headlight could not be turned off, so if yours is that way, you might be looking at doing a more involved wiring modification that just the key switch.

I'm guessing that your motorcycle is either strictly kick start or has a separate starter button for the electric start, and hence there's no need for a start position on the key switch?

What do YOU mean when you talk about the 'on' position. On a normal key switch, like your 4-position switch, there is no 'on' position (because that would be ambiguous). You have an accessory position, which generally provided power to everything except the actual ignition circuit(s) (and the starter, of course), and an ignition position that provides power to not only the accessories, but to the ignition circuits in addition. In some key switches, when the switch is turned to the start position, power is removed from the accessories (but not the ignition circuits). In other cases, the car's electrical system removes power from selected accessory items when the starter is engaged (and, in others, the accessories simply remain powered during start).

 

3 Position Automotive Ignition Switch for sale | eBay

 

Let's assign numbers to the positions then describe their functions:
1 is for ACC
2 is OFF
3 is RUN
4 is START.

When you first put the key in it's in position #2. You can turn it forward to position 3, the run position but the starter has not yet been engaged. Position 4 runs the starter motor which starts the engine. Releasing the key springs it back to position 3 to keep the engine running.

Now, I'm assuming this is an automotive key switch, the likes where you can only remove the key when it's in position 2. In position 3 the engine is running and all the accessories are also working. Position 1 is for only when you want to play the radio or run some other device with the engine not running. Modifying the switch you have is not likely going to be possible. Your better approach is to find a key switch that functions in the manor you wish.

Good luck with that.

 

My motorcycle did not have lights, so there was nothing for anybody to aim at. A magneto ignition so no fragile battery to go dead. Kick start so no need for a starter position or heavy starter motor. All flat black paint so it did not show up. I was the sole one responsible for my safety, never did get killed even once. Those days are long gone now, but the concept lasts.
Why not just have a key switch as the master, that enables all. One switch for ignition, then a button for start when the ignition is on, and another switch for accessories on only when the key switch is on. Then it is simple to switch the accessories on and off at any time, and switch on the ignition if you want to do a bump start, instead of starter motor or kick?

AND it will be simpler to wire and fuse and the key switch has only two positions and two terminals. Plus, you can have tghe crank button on the handlebar so it will be simple to restart when you kill the engine at a traffic light. If you do that sort of thing.