hey luka! i have a 1995 mulan, im in Massachusetts USA, the bike was also called a Kasea 50 (korean importer) so if your local bike dealer dosent know of Qingqi ask them if they can get Kasea parts, it is the same bike.
im going to clean the carb on my Mulan soon, so i'll look at it and see if i can see what type it is, the Suzuki FA50 uses the same carb, so you might be able to get one off that bike (or the dealer might be able to get a new one based on that info)
ive been asking all over for a manual, even emaild QingQi group in china, no luck.....
the Mulan is an awesome bike, fast, great on hills, but gas mileage is poor, u have to fill up a lot or you will be walking it, small fuel tank, also the stock tires stink, very slippery in the rain, im going to replace mine with Michelin's.
p.s. u dont know how excited i am to see another Mulan owner!! oh the joy! :)