OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Engines Questions On Briggs & Stratton Engines Briggs 9 Series - Damaged Muffler Bolt Thread

Hello Brendan_D

The are not really too many options.

The cheapest fix is to fit a standard 9 series screw-in muffler.
Otherwise, a repairer will need to re-coil with a thread insert if you would
like to fit a hush-tone muffler.

Hope this helps.
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JACK