Syncopation Issue


Roger Searle
 

All,

My '78 Roadster with ZS carb. is experiencing an occasional hesitation in the engine.  Almost like it stops for a faction of a second.  It happens just once each episode and mostly happens when pulling out from a stop.  It doesn't happen every time but maybe every 3rd or 4th stop.  And the engine runs perfectly at all other times.

The fuel pump is pretty new.  This has been happening for several months and a few hundred miles.  It's been refueled several times with Sunoco 93 since it started.  Accelerator pump?  Something else?

Thanks for any ideas.

Roger  

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