Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Sorry, I was out of town today.
I work 2 day jobs and help on Just Answer in the evenings.
You will be able to turn this engine by hand - it is not that strong of an engine.
I've never had to adjust the valves that far open before to get an engine started - I've never had to go past .005". But I know for a fact that the engine will run with the valves set to .009".
With the plug closed to .020", try setting the valves back to somewhere between .003" and .005".
When you installed the magneto, did you make sure to properly set the air gap to .010"?
Was this what you wanted to know?