Try the owners manual. It should be about .030 of an inch. If the magneto gets weaker close the gap about .002 (or to .028) of an inch.
Good Mowing.
.030
.030
.30 thousands
What is the gap on the spark plug on a Brigg's stratton lawn mower Model#31P777 Type 0348E1?
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not getting fire 4.75 briggs statton lawn mower
A Champion CJ8Y or J19LM will perform fine
.32
You can set most plugs at .030 and be safe.
One can purchase parts for a used Briggs and Stratton lawn mower from the following sources: Mower Graveyard, eBay, Briggs and Stratton, Zangler Repair, Lowes, Discount Online Parts.
Brigg's and stratton 5.5 hp on the craftsman push mower your gap tool set the gap at .025-030 for briggs 5 hp
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