Edited by board administrator November 23, 2016, 11:42 am
Sorry for late reply.. miss from cold for a few seconds. Suspect sticking valves. Gave top half a forties gas treatment through sensor in manifold.my son reported back a month later to say that running well. He is going to do the same every so often.i replaced the manifold a year ago and cleaned the valves then but shows you how quick the grunge up.
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