So, long story short, I took my carbs off, cleaned them, put them back on. This involved moving the air filter/box and things. When I tried to start the bike again, the electric start worked, but my carb bowls apparently were too loose and gas was leaking everywhere, so I shut the bike off, screwed everything in properly, and tried again. At first the rear signals didn't work and the electric start just made a whirring noise. I let everything dry off and tried again the next day, and all of my electrics now work EXCEPT that the electric start only whirs. Kick start works fine.
When I took the air box out again, I noticed that this little guy wasn't plugged in anywhere, and I probably had knocked it out when I put the box in the first time. However, I can't figure out where he goes.... wiring diagrams just made my brain explode

