Holley Hi-Performance 50cc Accelerator Pump Kit

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Significantly increases pump shot volume.

Eliminates flat spots off idle by supplying a continuous flow of fuel to your accelerator pump throughout the RPM range. Holley Hi-Performance 50cc Accelerator Pump kit includes accelerator pump housing, heavy duty accelerator pump arm, accelerator pump cam, molded diaphragm, special spring and four hold-down screws. Note: A 1/4'' spacer (minimum) must be used under the carburetor for most applications, in order to clear the pump unit.