Carburetor Service; Lms (97700, 99700, 110000, 120000, Verticals) - Briggs & Stratton 276781 Instruction Manual

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Figure 11
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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 fuel flow by plugging the
fuel hose.
NOTE: Consult the Illustrated Parts List to obtain
the appropriate carburetor overhaul kit before
reassembling the carburetor.
NOTE: Many early carburetors had adjustable
needle valves to compensate for high altitude
conditions. Later carburetors use replaceable
main jets to compensate for various high altitude
ranges. See the appropriate Illustrated Parts List
for replacement needle valves or jets.
68

Carburetor Service

LMS Carburetor
Vertical Models 97700, 99700, 110000,
120000
The exact type of LMS carburetor can be
identified by a number stamped on the edge of
the mounting flange (A, Figure 12). These
carburetors have a fixed high-speed main jet and
a non-adjustable idle mixture (except on early
production models), and are available in manual/
remote choke or Choke-a-Matic
Figure 12
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 fuel flow by plugging the
fuel hose.
1. Remove air cleaner assembly per Section
1. Discard the gasket.
2. Move clamp and disconnect fuel hose
from carburetor.
3. Disconnect the Choke-a-Matic® spring, if
equipped, from choke lever (A, Figure 13,
Figure 14).
versions.
®