Remove Carburetor; Disassemble Carburetor - Briggs & Stratton 030430 Service And Repair Manual

Remove Carburetor

1. Remove air cleaner assembly. Discard the gasket.
2. Move clamp and disconnect hose from carburetor.
3. Remove two carburetor screws or nuts while holding
carburetor.
4. Carefully rotate carburetor to disconnect throttle (A,
Figure 27) and spring (B) and the choke link during
removal.
Figure 27

Disassemble Carburetor

1. Remove solenoid and solenoid washer. Discard
washer. Remove float bowl and float bowl gasket from
carburetor. Discard gasket.
2. Using Carburetor Nozzle Screwdriver #19280, remove
the main carburetor emulsion tube (A, Figure 28).
Figure 28
3. Remove float hinge pin, float, and inlet needle. Discard
the hinge pin and inlet needle.
4. Screw a 1/4-20 tap into fuel inlet seat 3-4 turns and
remove.
5. Place a hex nut (A, Figure 29) and washer (B) on a
1/4-20 screw. Place 1/4" drive 3/8" socket (C) over fuel
inlet seat.
6. Thread screw into tapped inlet seat until screw bottoms.
Thread nut down to washer and continue turning nut
until inlet seat is free from carburetor body.
Figure 29
7. Remove idle mixture limiter cap, when used, then
remove idle mixture screw with spring and idle speed
screw with spring.
8. Rotate throttle shaft to closed position and remove
throttle valve screws and throttle valve.
9. Remove throttle shaft, foam seal, and throttle shaft seal
from carburetor body. Discard seals.
10. If carburetor is equipped with a plastic choke shaft,
rotate choke shaft to wide open position, then pull
choke valve out of choke shaft. Remove choke shaft,
return spring (when used), and foam seal. Discard seal.
31