jonwat Posted November 26, 2015 Report Share Posted November 26, 2015 20 hours ago, molemot said: I'm not even sure that the solution has been found now... although the standard carb. jets are at the limits of what they can cope with, and even the smallest reduction in diameter and hence flow gives problems, as I found myself. Don't believe that accelerator pump diaphragm or springs is going to produce the symptoms; you might get a "flat spot" on acceleration, but not the misfiring as the RPM rises past 3500 or so. I agree with John, the pump is activated by the action of opening the throttle so has no effect whatsoever at a constant RPM. Quote Cheers, John W http://jonwatkins.co.uk Link to comment Share on other sites More sharing options...
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