tested stock wiring the other day and found my ground/hi/lo. they both worked with the key on. i also tested the headlight i got with a 9v battery and it lit up (dim but it was just to test it). after i wired it into the stock harness it didnt work.
i then tested the light again and it worked. and then tested the harness again and it didnt show power coming from the hi or lo.
now im kind of at a stand still with it.

im about to go rip the bike apart to change my plugs, ill take pictures if thatll help

the headlight is a single beam projector. h3 i believe.

could i have blown a fuse or something?
is the light compatible with the bike?

 

I would say you definetly blew a fuse

 

How do you have it wired up?

If it's a single-beam with H3 bulb, you should connect only the low-beam power-line to it. The high-beam should be disconnected.

If you had a bi-xenon projector, then the high-beam line would connect to the solenoid that flips up the shield.

Look up the wiring-diagram and find the fuses for low & high beam circuit. You may have blown both of them.