Tips and Technical (YF, YFA)

The instructions are a bit ambiguous on how to measure the float. The early type float and late type float...

Float Level invert the air horn assembly, and check the clearance from the top of the float to the bottom...

1979, 1983-85 The fuel bowl vent is used to vent the float bowl, otherwise a vacuum will result and excess...

Carter YF & YFA Check Ball & Check Weight Placement 1st of all we should know what the check ball...

There is a lot of erroneous information in the classic car world about the Carter YF vs YFA carburetor. Hopefully...

Carter Jet Number to Size Conversion With no carb number you will need to measure what is in the carburetor...

Late Model YFA (aluminum base) How To Adjust Metering Rod The main metering rod adjustment is necessary on this design...

Carter YF 1 barrel downdraft carburetor exploded view with parts list. Please notice that this is a somewhat generic breakdown...

The table below assumes that the carburetor number matches with the vehicle, which isn’t always true. When you don’t know...

As the throttle is let off, the pump diaphragm moves to the down position. The check ball at ‘A’ drops...

Find YF and YFA rebuild and spec sheets for specific applications and carburetor numbers here.

Here is where we try to identify the screw sizes of the Carter YFA carburetor. We list our part number...