Possibility its pushed the left crank seal partially out at an angle so still doing part of its job but exposed at one point on the outer part. Actually i don't believe its that lol but was worth mentioning. Re the carb, as other have said it still sounds pilot jet but the main jet is in the end of that bung you can see in the bowl in the pic & take the jet out of the holder as can get stuff behind it then suck up to it from behind--sort of works/flows back to front to how a normal main jet flows. Pilot is No1 in the link & also No5 Oring is important or you'll have the opposite effect to what you have now & will go all flooded rich if 'that' doesn't seal into the bowl as 'that' controls the main jet operation. Something like that anyway. The old AG motor is only based on an LT2 with restricted porting & wide ratio farm gearbox. Sold them & fixed them from new where i worked. Cheers. NZ that is. Woops forgot link
www.babbittsonline.com/oemparts/a/yam/57...7f8cc8381/carburetor

That might help me, I might have some issues trying to find a replacement I’m in Australia I’ve looked on a few websites but can’t find another carburettor for it. I’m new to bikes so any help I can get is better then nothing

Does anyone know where to get a whole carb for it, I’d rather get a whole carb instead of spending a lot of money on individual parts

The AG models were primarily sold in Australia and New Zealand . So our US members may not be
much help . I'll have a check over the next day or so , if I have any specs on the LS3 carb .
The carb you already have may not be far removed from AG spec . It may already have been
altered to suit the AG .
You still need to clear your pilot jet and passage . Hopefully someone who's a bit more tech savvy
than myself , can throw up a picture to show you its location .

I would just properly clean what you have... and then maybe again, and then again.

I've seen plenty of bikes with a "wrong" carb from a similar model and they run just fine.

Post pictures of the carb apart and we can help

Same models in South Africa too. Just find the restriction & she'll be good.