Briggs & Stratton — To Clean the Muffler
Maintenance
From a Briggs & Stratton service manual — check it applies to your exact model before use.
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Procedure
- Unscrew the muffler from the engine
- Run water into the open end of the muffler
- If full streams of water come out of the small holes at the end of the muffler it is not clogged
- If the water runs through very slowly the muffler is probably clogged and should be replaced
Source: Briggs & Stratton service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.