Cheap carburetors may fit but they're really junk. They're poorly made, they leak, and mostly they're a menace to mankind. Keihin carbs are excellent quality, even the ones made in China. Kymco carbs are well made but I don't like the tuning. Otherwise they're OK. It's possibly worth buying a cheap clone carb just to get the gaskets and fittings since Chinese tech is based on everything being swappable. So a back-yard sand-cast carb may have Keihin gaskets. But it's always a bit of a crap-shoot. PS: the neoprene gaskets last for a lifetime, and are nearly always salvageable. Maybe look online for a Chinese Keihin carb? Just sayin'