My bike's got a plethora of issues. (Kickstart, e-start, carbs, etc.)

How did you go about attaching the seat to the frame?
Can i see the underside of the seat?
Can you ride a passenger on that thing?

I drilled two holes into the horizontal bar of the frame. I used wing nuts to hold it in place. Hah

I no longer have the bike so I can't show you. Sorry!
It would have been pretty uncomfortable, but if you're both small, it's possible.