Wagon
DISASSEMBLY
1. Disconnect vacuum tube, then remove accelerating pump connecting rod and lever from main body.
2. Disconnect choke rod, then the automatic choke heater and slow fuel cut solenoid electrical connectors.
3. Separate air horn and automatic choke assembly from main body.
4. Remove accelerating pump piston and boot then the float and retaining pin from air horn.
5. Remove needle valve assembly, primary and secondary air bleeds from air horn.
6. Drill rivets out of choke thermostat cover with a .12 inch drill bit and remove the cover.
7. Invert main body then remove accelerating pump return spring, inlet check ball, discharge weight and slow fuel cut soenoid and gasket.
8. Remove accelerator switch, then the diaphragm pin, attaching screws, diaphragm and gasket.
9. Remove attaching bolts and separate throttle body from main body.
10. Remove diaphragm cover attaching screws, then the cover, springs, diaphragm and ball.
11. Remove remaining air bleeds and jets, noting size of each so they may be installed in their original positions.
12. Remove throttle hanger and throttle adjustment screw from throttle body.
13. Remove mixture adjustment screw by turning and pulling out entire shell or by cutting shell off with a suitable saw. A new screw, spring and shell must be installed during assembly.
NOTE: Do not remove throttle valve and shaft, the venturi or choke valve and shaft.
REASSEMBLY
To assemble carburetor, reverse disassembly procedure, noting the following:
1. Discard all old gaskets and replace with new ones.
2. Ensure all components are clean and in good condition.
3. Ensure all components are installed in corresponding barrels and are not intermixed.
4. When installing mixture adjusting screw, bottom screw, then back off 3 or 4 turns and install shell, if equipped. Do not install blind cap or spring until carburetor is installed and idle mixture properly adjusted.