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Showing content with the highest reputation on 07/16/2019 in all areas

  1. the 3 most common things i have seen cause erratic running on these is 1) a plugged fuel tank vent (either improper routing or our friendly mud dauber hornets). 2) is a tiny hole in the fuel pump diaphram (at idle there isn't enough fuel draw, and at WOT there is so much of a pulse it can overcome the leak), and 3) is a delaminating intake manifold. they can delaminate internally as well as externally, so its not always easy to see. the test for the manifold leak is to have the machine idling (engine just warm enough to run without choke), and spray the manifold with water while grabbing the c
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