briggs-and-stratton-104m02-0028-f1-163cc-725exi-series-Push Mower Engine

Ready Start starting system with no prime, no choke, no worries, just pull for power.
Dual-sealing air cleaner for improved debris resistance and longer life.
Lightest engine in its class by 30% for easier maneuverability.
Acoustically-engineered muffler for quiet operation and excellent tonal quality.
Less vibration for more user comfort and enhanced engine life.