Inspect And Clean Carburetor; Assemble/Disassemble Carburetor; Remove Carburetor - Briggs & Stratton 110000 Service, Troubleshooting, And Repair Manual

This engine is equipped with either a
ReadyStart® Carburetor or a choke system.
The ReadyStart® utilizes a thermostatically
controlled choke system, requiring no primer or
manual choke. The linkages and carburetor body
have no serviceable components.

Remove Carburetor

WARNING
Before servicing the carburetor or other fuel
system components, drain all fuel from the
tank and turn OFF the fuel valve (if equipped).
Do not attempt to stop the fuel flow by plugging
the fuel hose.
1. Remove casing clamp (A, Figure 4-2) and
disconnect throttle cable (if equipped)
from throttle lever.
2. Remove air cleaner cover (B), filters (C),
base screws, base (D), and gasket (E).
Discard the gasket.
3. Release clamp and disconnect fuel hose
from carburetor.
4. Remove two carburetor mounting screws
(F).
5. Carefully remove carburetor from control
bracket (G). Rotate the carburetor to
disconnect the choke link (H), and
governor link (J).
6. Remove gasket (K), spacer (L), and o-ring
(M) between control bracket and
carburetor. Discard gasket and o-ring.
Disassemble Carburetor
1. Remove the fixed main jet (bowl nut, N)
and fiber washer (P), then remove the fuel
bowl (R) and the bowl gasket (S) from the
carburetor body. Discard the fiber washer
and the gasket.
2. Remove the float hinge pin (T), float (U),
and inlet needle (V). Discard the hinge pin,
and inlet needle.
3. If damaged, remove the choke return
spring (W) and discard. Note orientation of
spring before removal.
NOTE: Do not disassemble the carburetor body
or choke and throttle levers.

Inspect and Clean Carburetor

1. Inspect openings in the carburetor body
for evidence of wear or damage. If found,
replace the entire carburetor assembly.
2. Inspect the choke shaft, choke valve,
throttle shaft, and throttle valve for
evidence of wear or damage. If found,
replace the entire carburetor assembly.
3. Using Carb/Choke Cleaner #100041 or
#100042, clean inside and outside
surfaces of carburetor, then follow with
compressed air to dry.
NOTE: Do not soak the carburetor in carb/choke
cleaner or it will be damaged.
4. If any passages remain plugged after
cleaning, replace the entire carburetor
assembly.
Assemble Carburetor
Consult the Illustrated Parts List to obtain the
appropriate carburetor overhaul kit before
reassembling the carburetor.
NOTE: Install new gaskets and o-rings whenever
carburetor is removed for service.
1. Install new choke return spring, if removed
previously.
2. Install new hinge pin, float, and new inlet
needle.
3. Install new bowl gasket with the fuel bowl.
Install new fiber washer and the fixed main
jet. Torque to values listed in Section 12 -
Engine Specifications.
4. Attach governor link and choke link to
carburetor.
5. Place spacer with new gasket and o-ring
on control bracket.
6. Position carburetor on spacer and install
screws. Torque to value listed in Section
12 - Engine Specifications.
NOTE: Use new screws or apply thread locking
compound to original screws to prevent
loosening from vibration.
7. Connect fuel hose to carburetor and
secure with clamp.
8. Using new gasket, install air cleaner
components to carburetor. Torque screws
to values listed in Section 12 - Engine
Specifications.
9. Connect throttle cable (if equipped) to
throttle lever and secure with casing
clamp. Torque screw to value listed in
Section 12 - Engine Specifications.
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