272144 Vanguard Twin Cylinder OHV BRIGGS & STRATTON.pdf

Remove Carburetor from Manifold
Remove carburetor gaskets (2) and spacer (1),
Fig. 114. Discard carburetor gaskets.
Fig. 116
Replace either shaft if worn.
Fig. 114
Check Throttle, Choke Shaft and Body
NOTE: The measurement in Step 1 is taken with the
carburetor off of the intake manifold.
1. Lay carburetor on flat surface and check throttle
and choke shaft clearance as shown in Fig. 115.
Throttle shaft and choke shaft clearance (1) must not
exceed 0.010” (0.25 mm).
Replace the carburetor if the body is worn or if either
shaft clearance exceeds 0.010” (0.25 mm) when a
new shaft is used.
Disassemble
1. Remove carburetor, see Section 3.
2. Remove two screws and float bowl (2), Fig. 117.
Discard O-ring.
3. Use 13 mm thin profile wrench to remove fuel
solenoid (1) from float bowl. Discard gasket (3).
CAUTION: Do not damage fixed main jet and
housing when removing solenoid.
Fig. 115
Fig. 117
NOTE: The inspection in Step 2 is performed after
the carburetor has been disassembled.
2. Inspect throttle shaft and choke shaft for wear on
the shaft bore surfaces (2), Fig. 116.
4. Remove main jet from carburetor body.
5. Remove float hinge pin (5), float (8) and inlet
needle (4), Fig. 118.
6. Remove emulsion tube body (7) and gasket (6).
Discard gasket.
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