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How Carburetors Work

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Large throttle angles push the accelerator pump's lever against its diaphragm to initiate fuel enrichment when throttle angle increases. The pump can be tuned with interchangeable pump cams to alter its fuel curve.
How Carburetors Work - Carbin' It Easy

 Large throttle angles push the accelerator pump's lever against its diaphragm to initiate fuel enrichment when throttle angle increases. The pump can be tuned with interchangeable pump cams to alter its fuel curve.  View Related Article

 

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