Installed 130 main jet/ cone filter. Gas leaks out of intake

[Kcarvajal]

Guys, I was intimidated by rejetting until yesterday when I decided to dive in. Now I know why.

I installed a cone filter and a 130 main jet since I have a straight pipe and now a new filter. After installation, it fired right up and idled like before. I didn't test ride since it was late, so I called it a night.

This evening, as I was working on the bike to clean up the cables, I decided to start the bike. I noticed it didn't idle as well and would just die. A couple times, it won't start. Checked and gas was low. So I filled her up and tried starting. It had a hard time, and I had to hold the starter a little longer than usual until it turns over. In the process, I noticed black smoke out of the pipe. Once it fully turned over, the idle was a tad high and Not like before. Then I noticed gas leaking out from the back of the carb where the new intake was installed (where the air box was connected to previously).

I haven't removed the plug to adjust the mixture screw. A bit intimidated by that also for some reason.

Any tips, ideas or advice on what I did wrong?

Thanks!
Ken