Yeah I figured out I needed to remove the nipple thankfully due to the guy down at the ATV shop down the street. Got another plug too & screwed it in. Sure an NGK will be way better than that POS (**** it slid off the cable), but still requires the cap to be removed. Wiring appears to be good too. Checked the killswitch too which appears to work (closed when pushed right?). Even tossed a fuel filter in since I'm paranoid about some crap being in the tank too.
Oh, and more pictures. Updated the initial post with all photos so far too.