Briggs & Stratton 276535, 271172 Shown is a typical muffler application Figure, Remove Muffler

Vertical Models 280000, 310000, 330000 with Bolt-On Muffler

Shown is a typical muffler application (Figure 27).

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Figure 27

Remove Muffler

1.Remove muffler support screw (C, Figure 28).

2.Bend back tabs (A) on screw lock and remove mounting screws (B), muffler, and gasket. Discard screw lock and gasket.

3.Remove adapter screws, adapter, and gasket. Discard gasket.

Figure 28

Inspect Exhaust System

All exhaust system components must be inspected whenever the exhaust system is disassembled. Check muffler mounting bracket and/or muffler adapters for cracked welds or breakage. Check muffler for split seams, loose internal parts, or cracked welds. Replace any damaged parts with new OEM parts.

Never reinstall broken or damaged components.

Install Muffler

1.Lightly coat muffler adapter screws with Valve Guide Lubricant #93963.

2.Install new gasket and adapter. Install screws (A, Figure 29) and torque to values listed in Section 12 - Engine Specifications.

Figure 29

3.Install muffler screws with new screw lock into muffler and place new exhaust gasket on end of screws.

4.Place muffler assembly on muffler adapter and start screws, but do not tighten.

5.Start muffler support screw and hand- tighten.

6.Torque all screws to values listed in Section 12 - Engine Specifications.

7.Bend the screw lock tabs up against the head of the mounting screws.

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