Supplied with nozzle size. 105
Suitable nozzles for this carburetor = Mikuni M10/14 - M5,2
See nozzle kits art.no. 20874 to 20879
Carburetors whether original or replica need to be cleaned before assembly.
Take the opportunity to get to know your new carburetor by disassembling it and making sure that there are no metal shavings left over from the manufacturing process.