Need help with 125 pitbike

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gillesr

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I have a 125 4 stroke chinees pitbike and i bought a (prob replica) mikuni 26 carb for it. Now the problem is that it wont start (cold or already hot) without choke. The idle is all the way out (slide is almost closed) yet when i do the choke complete it goes so high in rpms. when i do half choke it works but when i rev it fast it is 1 big bog. I have tried every needle position. I also cleaned the carb main jet is 95 pilot is 15.
Im prety sure i dont have air leaks. some vids are attached
 

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