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Briggs & Stratton Small Engine Runs Poorly

356447/0079-G1

The 10 most common part(s) or condition(s) which cause the symptom Small engine runs poorly are listed below starting with the most likely. Check or test each item and watch any available videos.

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Rebuild Kit - Part # 1611302 Mfg Part # 809021

Rebuild Kit

RepairClinic Item # 1611302

If the small engine runs poorly,it may not be getting enough fuel. Every engine needs air, fuel and spark. The carburetor rebuild kit can repair the carburetor which has two inputs, fuel from the gas tank and air through the air filter. The carburetor assembly is designed to mix the air and fuel in an exact and consistent ratio so that the lawn mower engine can run continuously. If the carburetor assembly is not getting enough air, or not enough fuel, or if the fuel is blocked inside the carburetor assembly, the engine does not start.

$68.50

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Rebuild Kit - Part # 1650562 Mfg Part # 842881

Rebuild Kit

RepairClinic Item # 1650562

If the small engine runs poorly,it may not be getting enough fuel. Every engine needs air, fuel and spark. The carburetor rebuild kit can repair the carburetor which has two inputs, fuel from the gas tank and air through the air filter. The carburetor assembly is designed to mix the air and fuel in an exact and consistent ratio so that the lawn mower engine can run continuously. If the carburetor assembly is not getting enough air, or not enough fuel, or if the fuel is blocked inside the carburetor assembly, the engine does not start.

$58.55

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Spark Plug - Part # 1610795 Mfg Part # 496018S

Spark Plug

RepairClinic Item # 1610795

If the small engine runs poorly the spark plug might be defective. All small engines have an ignition coil. The coil is the device that provides spark for the spark plug(s). If the coil is bad power won't get to the spark plug(s). The coil is essentially a small, induction generator. It is mounted next to the flywheel. The flywheel has one or more strong, embedded magnets. As the flywheel spins, the magnet(s) zip past the induction coil, this action of a magnet passing past a coil induces a voltage. Depending on the design of the coil and the strength of the magnets, a stronger or weaker spark can be created and delivered to the spark plug(s). Each time the flywheel spins around a spark is generated. The best way to test a spark plug is to use a spark plug tester. The spark plug should have a strong, visible spark between the electrodes when the engine is cranking. If it doesn't, replace it.

$3.00

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Spark Plug - Part # 1610953 Mfg Part # 691043

Spark Plug

RepairClinic Item # 1610953

If the small engine runs poorly the spark plug might be defective. All small engines have an ignition coil. The coil is the device that provides spark for the spark plug(s). If the coil is bad power won't get to the spark plug(s). The coil is essentially a small, induction generator. It is mounted next to the flywheel. The flywheel has one or more strong, embedded magnets. As the flywheel spins, the magnet(s) zip past the induction coil, this action of a magnet passing past a coil induces a voltage. Depending on the design of the coil and the strength of the magnets, a stronger or weaker spark can be created and delivered to the spark plug(s). Each time the flywheel spins around a spark is generated. The best way to test a spark plug is to use a spark plug tester. The spark plug should have a strong, visible spark between the electrodes when the engine is cranking. If it doesn't, replace it.

$4.95

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Spark Plug - Part # 1646913 Mfg Part # 792015

Spark Plug

RepairClinic Item # 1646913

If the small engine runs poorly the spark plug might be defective. All small engines have an ignition coil. The coil is the device that provides spark for the spark plug(s). If the coil is bad power won't get to the spark plug(s). The coil is essentially a small, induction generator. It is mounted next to the flywheel. The flywheel has one or more strong, embedded magnets. As the flywheel spins, the magnet(s) zip past the induction coil, this action of a magnet passing past a coil induces a voltage. Depending on the design of the coil and the strength of the magnets, a stronger or weaker spark can be created and delivered to the spark plug(s). Each time the flywheel spins around a spark is generated. The best way to test a spark plug is to use a spark plug tester. The spark plug should have a strong, visible spark between the electrodes when the engine is cranking. If it doesn't, replace it.

$5.70

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Flywheel Key - Part # 1648750 Mfg Part # 808095

Flywheel Key

RepairClinic Item # 1648750

If the small engine runs poorly the flywheel key might have sheared in half or partially. The flywheel key is a small metal shim which fits into a slot in the crankshaft and engages with the flywheel. If the engine stops abruptly due to a problem with the equipment the flywheel key may shear. The only way to know for sure if this is the problem is to remove the flywheel and inspect the flywheel key.

$6.60

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Air Cleaner - Part # 1610704 Mfg Part # 393957S

Air Cleaner

RepairClinic Item # 1610704

If the small engine runs poorly the air cleaner might be clogged. Remove the air cleaner and replace with the correct filter.

$11.95

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Fuel Filter - Part # 1567939 Mfg Part # 691035

Fuel Filter

RepairClinic Item # 1567939

If the small engine runs poorly the fuel filter might be clogged. The fuel filter is usually inline with the fuel line coming from the gas tank. Its purpose is to trap sediment and contaminants from the fuel. Over time it can become clogged and not let enough fuel through. It can't be cleaned but must be replaced if needed.

$5.85

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Fuel Filter - Part # 1611296 Mfg Part # 808116S

Fuel Filter

RepairClinic Item # 1611296

If the small engine runs poorly the fuel filter might be clogged. The fuel filter is usually inline with the fuel line coming from the gas tank. Its purpose is to trap sediment and contaminants from the fuel. Over time it can become clogged and not let enough fuel through. It can't be cleaned but must be replaced if needed.

$7.90

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Fuel Filter - Part # 1642940 Mfg Part # 691370

Fuel Filter

RepairClinic Item # 1642940

If the small engine runs poorly the fuel filter might be clogged. The fuel filter is usually inline with the fuel line coming from the gas tank. Its purpose is to trap sediment and contaminants from the fuel. Over time it can become clogged and not let enough fuel through. It can't be cleaned but must be replaced if needed.

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