Regarding scooter tyre pressure

Bhai I have sp125 I need to fill air after every 5 days 🥲 tubeless

I keep 26 front and 36 back. I generally get it topped off every refuel, and it doesn't usually drop more than 1-2 psi in a week. 

recently replaced back tyre of tvs jupiter after 3-4 years with CEAT one

It depends on factors like usage patterns, temperature and condition of tyre and rim. Still for a normal usage, it drops in the range of 2-5psi. I too have a habit of keep topping it up every 5-7 days depending on the usage.

And if you're too serious about it and can feel the difference of 2psi in the tyre, I would recommend you get your own tyre pressure gauge..preferably digital and from a reputed brand like Michelin since no one else is actually serious about the tyre pressures. Local mechanics usually fill a lot more than you ask them to, and the machine at the petrol pumps are not quite upto the mark too. I recently went on a 200km trip to another city and visited a fuel pump while returning..asked the person to top up the pressure to 30 and he did. But when I checked it with my own gauge, it was a whopping 55psi. I've no idea what would've happened if I was riding at 90-100kmph on a hot sunny day with that pressure in my front tyre.

Tubeless tyre gets small punctures over time and air regularly leaks out. Else in tubed tyres, air pressure does not get down even in months.

30f 32r

Tubeless tyres also have leaks from side walls. For this, you will need to have the tyre removed, rim sand paper'd and then painted/dusted before putting on the tyre again. I had similar issue which went on for a long time but this solution worked.