Carburetor for the GY6 50 Euro4 139QMA/139QMA/XSP37GMA engine
Main jet: ** (4 mm)
Low-speed jet: **
Intake connection: 28mm
Air filter connection: 38mm
Carburetors, whether original or replica, must be cleaned before installation.
Take this opportunity to get to know your new carburetor by disassembling it and making sure there are no metal shavings left over from the manufacturing process.