Forza 155z carb issue

[Akayll2015]

Hey everyone I'm new here,recently bought a forza 155z pit bike running the pz30 carb,I can start the bike fine with the carb switch all the way down so the carb is open,as soon as it's warm I flick the switch up so it's closed,after a few revs it's splutters and dies and u can smell fuel like its over fuelling itself,I did abit of research and found some people saying the jets in the pz30 carb are not right for the 155 engine and I should upgrade to the mv24 carb,

Any suggestions?

Thanks Alex

[Buddha#81:Me]

Did you buy new? If so take it back and get them to retify the problem.