The Briggs and Stratton 31C707 Powerbuilt is a 501 cc (30.6 cu·in) single-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured
The Briggs and Stratton 28S777 Intek is a 465 cc (28.38 cu·in) single-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured