Yes I'm wondering if anyone can help me with a Kara 90 2 stroke ignition wiring I had ordered an ignition switch didn't match the plug that was on the four wheeler so I had to end up splicing it but I can't figure out what wires go to what on the wiring harness

 

You need a multimeter to do anything with it. It's basically a double double throw switch, ie it turns two things on. With a meter you should get connectivity between two pairs of wires when the key is "on".

 

you should get connectivity between two pairs of wires when the key is "on".

Not quite correct chipskittles, (unless you know that particular Quad). Most AC CDI quads have one switch closed when ON, t'other switch closed when OFF (to short the kill wire to earth). However some do work like chipskittles wrote, so you also need to fit the correct type of switch for YOUR CDI.

 

you are right, not sure what I was thinking, yes with switch off one pair should then be on, to ground the safety system.