Bonjour,
I have never been able to start my Hit & Miss engines the first time either! As the spark is fine, plug not wet, ground screwed on the engine, timing seeming correct, you are right, the issue is the gasoline.
The needle was open about 1/4 turn and I did not heat the cylinder.
Besides this, I have no pulley and would not know where to fiw it on the flywheel, there is no dedicated hole, I have to find something with my drill and a piece of rubber for example.
I guess it would be more bland if everything was too easy... I guess