Small engine noise is caused by hot gases being forced out of the cylinder during each exhaust stroke. A muffler’s job is to reduce that exhaust noise and to prevent exhaust sparks from existing and igniting dry grass, leaves or debris.
After a season or two, soot build-up and cracks or holes can cause the muffler to stop working properly. Read our step-by-step guide to inspecting and replacing mufflers or skip to the most relevant section below:
How to Inspect Mufflers for Repair or Replacement
How to Remove and Replace a Muffler
How to Remove a Rusty Muffler
Review your Briggs & Stratton Manual for product-specific info and safety precautions. Your local Briggs & Stratton Engine Repair Dealer is also a great resource to help perform muffler replacement.