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Primer bulb. The primer bulb draws additional fuel into the carburetor to make the engine easier to start. If the primer bulb is leaking, replace it.

Primer bulb

Primer repair kit

Briggs & Stratton carburetor primer bulb. The primer bulb draws fuel into the carburetor to make the engine easier to start.

Primer bulb

Primer bulb kit

Primer bulb kit

Primer

Primer pump

Primer replaces: 632433
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