Briggs & Stratton 270962, 271172 manual Remove the main jet and seal, Inspect and Clean Carburetor

Figure 58

6.If equipped, remove the idle mixture screw with spring (A, Figure 59) and the idle speed screw with spring (B).

Figure 59

7.Rotate the throttle shaft to the closed position (Figure 60). Remove two screws (A) and the throttle plate.

Figure 60

8.Pull the throttle shaft from the carburetor body. Discard foam seals.

9.Rotate the choke shaft to the wide open position (Figure 61), then pull the choke plate (B) from the shaft (A).

Figure 61

10.Remove the choke shaft, return spring, and foam seal. Discard spring and seal.

11.Remove the main jet and seal.

NOTE: Do not attempt to remove the pilot jets, which are pressed in and not serviceable.

12.Remove the welch plug (A, Figure 62) from the carburetor with a modified pin punch. Discard the welch plug.

Figure 62

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. Replace parts as necessary.

3.Using Carb/Choke Cleaner #100041 or #100042, thoroughly clean the following components, then follow with compressed air to dry:

•Passages in the fuel transfer tube and jets

•Inside and outside of the fuel bowl

•Float

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