Suzuki rmz450 07 acceleration issue

Hello guys, I have a dilemma with my Suzukirmz450 07 , soo let’s start , I clean the carburettor, all good.

But yet the bike accelerate by itself when I accelerate and stop it stays there, even the paddle is back to normal is not getting stuck on any position , is juts start to accelerate and only way to slow down is to adjust the little thingy dat is on the left side and then it’s stop or to play with the hot/cold starter from the right side of Handle  , I am speechless, it drives me nuts .

is it leaking to much air from somewhere  or idk I even check the acceleration sensor is all good , is to much air and petrol is the mix not right , no matter how I adjust at some point if I accelerate and I leave the back to normal then if I touch it a bit it starts to accelerate again , I repeat the gas is to 0 the Handle is not stuck or in any degree of acceleration..

what can it be…