The featured engine here is a 1926 Briggs and Stratton Model FH four cycle engine.
MODEL FH -- (1925-1933, 1/2 HP, 2.25" Bore, 2.25" stroke, overhead valves). This engine has slanted cylinder fins and a bronze carburetor. It has magneto ignition, two cast-iron flywheels and one blower housing.
One flywheel has a centrifugal governor under it. The other flywheel has a magneto under it. There is a brass ID tag on the blower housing. This model has the rope start. The rope start, lever/chain start and pedal/chain start were all available on this engine. The exhaust is aspirated through a 3/4" NPT threaded port. The cast-iron gas tank doubles as the base of the engine underneath the oil sump, the carburetor is directly attached to the gas tank. The entire engine is made of cast iron and is cooled by a flywheel fan that blows air over the finned cylinder to accomplish cooling.
Early models had bronze carburetors and slanted cylinder fins.
Later versions had straight fins and pot-metal carburetors.
Briggs and Stratton is the trade name of the Briggs and Stratton corporation.
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