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CT Jack · 03-09-2022, 11:13 PM

Get rid of the fuel filter. Your carburetor might be warped causing a vacuum
leak at the cover gasket. The carburetor casting where the throttle shaft goes through might be warn causing a vacuum leak. Is your windshield wiper vacuum line sealed? The fuel level in the carburetor might be too low. I would try using a Zenith carburetor to see if your hesitation problem changes.

03-09-2022, 11:13 PM	#73
CT Jack Senior Member Join Date: May 2010 Location: Hebron, CT Posts: 639	Re: Engine stumbles on acceleration Get rid of the fuel filter. Your carburetor might be warped causing a vacuum leak at the cover gasket. The carburetor casting where the throttle shaft goes through might be warn causing a vacuum leak. Is your windshield wiper vacuum line sealed? The fuel level in the carburetor might be too low. I would try using a Zenith carburetor to see if your hesitation problem changes.