Re: Zenith troubles
If you haven't fiddled with anything else ( eg ignition) it Certainly sounds like it running weak. If your're sure that all the passageways and jets are clear of crud and the fuel flow to carb is good. then the next things I would check for are 1) an air leak at the carb/manifold gasket ( I use a light smear of Blue Hylmoar sealant routinely - not sure if it's available in USA) and 2) the fuel pipe poking through the olive into the carb body too much..( it should not extend more than 1/8 inch beyond the olive, more than an 1/8 and the fluel flow into the strainer gets restricted )
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