I went from a t4 performance exhaust to stock and I'm having problems with the fuel overflowing out the air intake and bowl drain when trying to start and when it's off , it starts then dies out only restarts with throttle wide open, do jets need to be changed or is mite it be a float or needle jet seal problem.thanks, it's all apart now I'm about to remove the carb now.

 

2000 polaris scrambler 500 4x4

 

See if this helps on the carb. Pdf on fuel system repair/jetting from the service manual.https://www.google.com/url?sa=t&rct=...,d.aWw&cad=rja