| 摘要 |
A carburetor start pump circuit, for starting an engine, has an auxiliary fuel pump mounted on a relatively standard carburetor body, a pulse passageway extending through the carburetor body to the auxiliary fuel pump, and a fuel circuit having an intake side extending from a metering chamber in the carburetor body to the auxiliary pump where it is interconnected to a discharge side extending from the auxiliary pump to a throttle bore in the air intake of the carburetor body. To facilitate control of fuel flow, the fuel circuit includes inlet and discharge check valves and a metering jet.
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