Hi Grumpy, looks to be the same set up. In the picture the governor spring is attached on the bottom of governor arm, hope you dont mind but i gave it a try there, no difference. Tried it up higher,just in case, made no difference. Have got some photos of carby with gaskets still on it.
This first one is the airfilter side. Is original gasket and still looks good.
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Next photo is back end of carby which bolts onto inlet manifold. Gasket is homemade i'm guessing, but still looks good without no signs of wear and tear, but should it continue all the way into mouth part of carby ( around bottom left side ). With it this way would that be enough to make the motor hunt/surge.
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Have included a few photos of carby itself just so as you know what we are working on.
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