Simplicity Lawn Mower 4212H Parts

Briggs & Stratton Spark Plug (RJ19LM). If the engine does not start or runs poorly then the spark plug may be defective and will need replacement.

Fuel pump. If this fuel pump is being installed on a Intek V-Twin engine originally equipped with a metal fuel pump, related item 1567967. The fuel pump supplies fuel to the carburetor while the engine is running. If the fuel pump is clogged, the engine may not start or may run rough.

Briggs & Stratton starter gear (also called a pinion gear), 16-tooth, plastic. The starter gear engages the flyhweel to start the engine. If the teeth on the starter gear are worn out, the engine may not start.

Briggs & Stratton in-line fuel filter. The filter screen is on the large side of the housing. The port on the large side goes to the fuel tank while the port on the small side of the housing goes to the carburetor.

Briggs & Stratton flywheel key. The flywheel key aligns the flywheel in the correct position on the crankshaft. If the engine stops suddenly due to hitting a hard object, the flywheel key shears in half to prevent damage to the engine. If the flywheel key is broken, the engine won't start.

Briggs & Stratton in-line fuel filter. If the fuel filter is clogged, it will restrict the flow of fuel to the carburetor. As a result, the engine may not start.

Gasket-float bowl

Fuel inlet hose connector

Gasket-exhaust

Fuel Shut-off Valve, In-Line Valve. Fits 1/4 Inch inside diameter fuel line

Bracket, control

Oil seal, magneto side

Starter motor. When energized, the starter motor's drive gear engages the flywheel to start the engine. (Ensure that the solenoid wire is not being pinched upon installation of the starter, as this will potentially short the circuit)

Spark plug boot

Flywheel ring gear kit. Single cylinder Briggs