Main jets control how much fuel is sent from the float bowl to the various circuits of the carburetor. Weber main jet sizing nomenclature refers to the flow rate in hundredths of a millimeter (0.01mm). A 150 main jet, for example, flows the same as a perfect hole with a 1.50mm diameter. Larger numbers make the engine run richer from off-idle to about midrange RPM.
This jet design fits Weber 32/36 DGV/DGAV/DGEV and 38/38 DGAS/DGES/DGMS carburetors. Jets are sold individually.
Also fits Weber ADF, DARA, DCD, DCN, DCZ, DFAV, DFEV, DFI, DFM, DFV, DHSA, DIC, DICA, DIR, DMSA, ICH, ICT, and IDA (3-barrel) carburetors.
For genuine Weber carburetors only. Many look-alikes, licensed copies, and knock-offs will not accept Weber jets.