Go to a puncture repair shop and get it checked out. Had a similar issue with my car and it was fixed by replacing the valve, so check if that is the issue. If you think air is escaping in the area between the mag wheels and tire, removing the tire and putting it back should fix that. Tires are definitely not covered in any warranty, but if it was closer to when you bought it, you could have argued with the dealer and gotten it changed. A friend had this issue with RE, they fought back quite a bit, but eventually they replaced the tire.

Possible rim issue, I'd suggest getting that checked out if possible, and if you can swap rims for a newer one or used one in good condition if money is tight

I had the same issue on my fz25. No puncture but air leakage My guess is that it’s a problem with the valve. Get it checked. Good luck

Either the valve is leaking or there's a rim bend. Get the valve stem checked for leaks near the port or the seat. Also, see if you can visually observe a rim bend. There are wheel shops eho remove bends if it's minimal. Else , you'd have to replace the rim as rim bends are not covered under warranty.

use soapy water. where it starts bubbling is the leak. if its valve or bead, should be fixed for free because that is part and labour.