272144 Vanguard Twin Cylinder OHV BRIGGS & STRATTON.pdf

NOTE: Do not use wire, drills or other mechanical
devices to clean out metering holes or
passages.
Inspect Carburetor
Inspect all parts for wear, cracks, nicks and burrs.
Inspect float for leaks. Replace damaged parts.
Assemble
8. Install new throttle shaft welch plug. Use round
punch and tap in plug until it is flat.
9. Use sealant on outside diameter of welch plug to
prevent leaks.
10. Install new ‘‘E” ring (11), washer (10) and felt
seal (9) onto choke shaft, Fig. 35.
11. Insert spring (8) and check ball (7) in to spring
pocket. Compress with a small round punch.
When assembling carburetor, use new seals and
gaskets.
1. Install new transitional hole idle port welch plug
(1), Fig. 33.
2. Use a round punch (2). Tap in plug until it is flat.
3. Seal the outside diameter of plug with
Permatex ® #2 or nail polish to prevent air leaks.
Fig. 35
12. Install choke shaft.
13. Install choke plate as shown, Fig. 35.
NOTE: Use LOCTITE ® 222 on screw threads.
14. Assemble inlet needle retainer (12) to inlet
needle (13). Assemble to float, Fig. 36.
15. Install float.
Fig. 33
4. Assemble new throttle shaft seal (4) with sealing
lip out, Fig. 34.
5. Install throttle shaft with collar (3).
16. Install emulsion tube (15) and fixed main jet (14).
6. Install washer (5) and snap ring (6).
ÒÒ
Fig. 36
7. Install throttle plate.
Fig. 34
NOTE: Use LOCTITE ® 222 on screw threads.
17. Check float adjustment, Fig. 37.
a. Hold carburetor in vertical position with float
hinge up as shown.
b. Float should be parallel (17) to bowl
mounting surface.
c. Bend tang (16) if required.
NOTE: DO NOT press on float to adjust.
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