OK, checked and reset governor, was a little off but not much, I believe the spring was in the fifth hole down from the shaft. Checked timing and gap at points was .020 when the S scribe was aligned with indicator (actually couldn't see the S even after cleaning the flywheel, but there was a clear straight scribe that opened the points right when it was aligned with the indicator as well as some paint marks on the teeth, assumed that was it). Removed fuel line at carburetor, steady flow through tank and filter. Checked main and idle needles, they were where they should be. Still having the same problem.
In my initial post I mentioned that the PO had done a lot of mechanical work. To elaborate, he had the engine completely rebuilt including the carburetor, ignition, etc. I believe he said it had 3-4 hours on it when I purchased it. Claimed to have cut his three acre lot several times with no issues. I've maybe put one more hour on puttering around with this thing.
When looking at the choke and carb butterflys they appeared to be new, outside and what I could see of the inside of the carb were clean as a whistle. All the ignition components are new, points, plug, coil, wire, etc. Gap on plug was .035 which I believe is correct. New fuel hoses and fittings.
About the only thing that seemed like it might be out of place was an inline disc type fuel filter. As I mentioned I got a steady stream out of it but the ID on the filter nipples is considerably smaller than the ID of the hose. Could that be a restriction?
It appears there may be better methods to check the timing than a feeler gauge but there were several methods listed in the Kohler service manual and I honestly wasn't sure which one to use. Recommendations welcome!
Thanks for all the feedback and comments. I'm a NOOB at these and just trying to learn and get this thing running the way it should be.
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