WPVT Posted February 25, 2018 Posted February 25, 2018 The Zenith updraft carburetor on my 1929 truck has a sticking needle valve, currently stuck open. Are there any tricks for un-sticking the valve besides rapping on the carb or tearing it apart?
retiredmechanic74 Posted February 25, 2018 Posted February 25, 2018 I would think that the needle valve is open because the float is sinking, if the valve is stuck that would mean it needs to be taken apart and cleaned out. Ether case the carb will have to be taken apart.
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