Disassembly (Major Carburetor Components)
- Remove pump lever assist spring and pump rod split pin with washer. (Scheme 16) Remove pump lever and split pin with washer. Remove return spring, main spring and fuel-cut (slow-cut) solenoid valve. DO NOT damage solenoid valve tip.
- Remove fast idle cam and spring. Remove choke chamber assembly. Remove air horn assembly. Remove float chamber assembly, float and gasket. Remove throttle chamber assembly.
| CAUTION | Disconnect fuel-cut (slow-cut) solenoid before disassembling choke chamber. |
Disassembly (Choke & Float Chamber Assembly)
- Remove vent cover. (Scheme 17) Remove mixture control (duty) solenoid (if necessary). Remove choke chamber, fuel nipple, fuel filter, fuel bowl (level gauge) cover and seal. Remove float, collar, and needle and seat.
- Remove secondary and primary jets. Remove piston, pump cover and piston return spring. DO NOT lose check ball. Remove accelerator pump set screw, injector spring, injector weight, taper plug and slow jet spring. Remove primary and secondary slow jets. Remove main air bleeds. Remove primary slow air bleed and float chamber.
Disassembly (Throttle Chamber Assembly)
- Remove diaphragm chamber assembly, chamber cover, diaphragm spring and diaphragm. (Scheme 18) Remove idle (mixture) adjusting screw, throttle (idle speed) adjusting screw, throttle shaft nut, washer and throttle lever.
- Remove spring hanger, shaft collar, fast idle adjusting lever and screw. Remove kick lever, return spring, return plate and sleeve. Remove adjusting lever and throttle chamber.
Reassembly (Complete Carburetor Assembly)
- Reverse disassembly procedure. Ensure all components are positioned correctly. To prevent twisting and cracking, grease "O" rings before installing.
- To prevent loosening if choke and/or throttle valves are removed, stake or apply adhesive compound to set screw threads. Check linkage and operating levers for smooth operation.
Scheme 16
Scheme 17
Scheme 18
