272144 Vanguard Twin Cylinder OHV BRIGGS & STRATTON.pdf

Inspect Carburetor
Inspect all parts for wear, cracks, nicks and burrs.
Inspect float for leaks. Replace damaged parts.
Assemble Carburetor
When assembling carburetor, use new seals and
gaskets.
Install Fuel Inlet Seat and Body
1. Install new inlet seat (3) with chamfered end
down, Fig. 106.
2. Press in new body (2) using Tool #19135 (1).
8. Assemble spacer (9) onto choke shaft.
9. Insert spring and check ball (11) in to spring
pocket. Compress with a small round punch.
10. Push choke shaft into hole until ball engages
groove in choke shaft.
11. Install retainer (12) to shaft.
12. Install choke plate.
NOTE: Use LOCTITE 222 on screw threads.
Fig. 108
13. Install fixed main jet (16) with Jet Screwdriver
#19062 (18), Fig. 109.
14. Install washer (15) and plug (14).
Fig. 106
3. Install new throttle shaft seals (5) with sealing lip
out, Fig. 107.
4. Install throttle shaft with spacer (4) and foam
seal (8).
5. Install foam seal (7) and retainer (6).
6. Install throttle plate.
15. Install emulsion tube (17).
NOTE: Fixed main jets are numbered (13) for the
type of fuel delivery system used. Install
#110 jet if engine is equipped with a fuel
pump. Install #117.5 jet if engine is equipped
with a gravity fuel tank.
NOTE: Use LOCTITE ® 222 on screw threads.
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Fig. 107
7. Install new choke shaft seals (10) with sealing lip
out, Fig. 108.
Fig. 109
16. Install bowl drain screw (19) and spring,
Fig. 110.
17. Install idle mixture screw (20) and spring.
DO NOT tighten screw.
DO NOT install limiter cap at this time.
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102