Carter YF 1 barrel downdraft carburetor exploded view with parts list. Please notice that this is a somewhat generic breakdown of the YF carburetor. Your YF may differ in some places. This should also not be confused with the Carter YFA carburetor.
1 Gasket Body Flange
21 Choke Connector Rod
2 Flange Assembly
22 Connector Rod Connector
3 Idle Adjusting Screw
23 Air Horn
4 Idle Adjust Screw Spring
24 Air Horn Screw & Washer
5 Body Flange Gasket
25 Metering Rod Arm
6 Body Flange Screw & Washer
26 Pump Lifter Link
7 Metering Rod Jet Gasket
27 Needle Seat Gasket
8 Metering Rod Jet
28 Needle & Seat
9 Metering Rod
29 Float
10 Low Speed Jet
30 Float Pin
11 Pump Diaphragm
31 Main Body
12 Pump Diaphragm Housing
32 Pump Connector Link
13 Diaphragm Screw & Washer
33 Throttle Shaft Arm
14 Pump Intake Strainer
34 Pump Discharge Ball
15 Pump Diaphragm Spring
35 Pump Discharge Ball Weight
16 Diaphragm Spring Retainer
36 Pump Intake Ball Retainer
17 Upper Pump Spring
37 Pump Intake Ball
18 Upper Pump Spring Retainer
38 Thermostat Housing
19 Bowl Cover Gasket
39 Thermostat Housing Gasket
20 Pin Spring
40 Air Horn