Yamaha Neos 4T - Lean, rich or something else?

I have a yamaha neos 4t that has issues with idling, and I don't have a clue about what the issue is. Also I tried to have a shop take a look and they did not find a solution.

Symtoms:

When cold it will not idle. When the issue started it could maintain idle after a cold start, but if I drove just 10-20 seconds it would bog and die when returning to idle. This has worsened so it will bog as soon as I start it up if I don't give it a little gas.

After running for 5-10 minutes it will not bog when idle, but sometimes it seems like the RPM is too high when idling, and even though I don't give any gas during deceleration, it feels like it will not decelerate like normal, but sort of keep the speed for much longer than expected.

The only mod is a new exhaust. Not original, but not for tuning/performance either.

So am I running rich, lean or is there something else wrong with my Neos?

 

Ultra sonic clean the carb
Change the auto choke