When I start the moped on choke it revs full throttle and if I open the choke it dies. I can keep it running by just opening the choke a little bit when you give it gas it bogs out and then catches. Things I’ve done : cleaned tank, new petcock, new plug, cleaned carburetor 3 times and still the same. I order a new carb since there cheap but I really don’t think it’s the issue since it’s clean as clean can be. I got this moped with this issue it does have a performance exhaust. Person said it was running great but just died and and he couldn’t get it running right since.