Recheck numbers and post, model xxxxxx, type xxxx, trim xx. Numbers you posted not showing up, and yes compression is low.
FAQ | Lawn Mower Safety Tips | Briggs & Stratton
https://www.briggsandstratton.com/u...dStratton/RepairManualByEngineModelSeries.pdf these are B&S repair manuals, I suggest you locate correct model number and purchase manual, just google" B&S manual number" and search for lowest price & have it delivered to your door. The answer to your question is possibly, you will need to perform a thorough inspection of all internal engine parts for wear and make a parts & gasket order, if you purchase manual, inspect all parts per manual, order OEM B&S replacement parts and reassemble per manual instructions you will have a smooth running machine, be sure to adjust valves to specs. after reassembly, new oil, spark plugs & air filter.
post craftsman model number from under seat.
Results Use OEM B&S parts page 9 this manual.