1) Fuel flow from the float chamber is ok. No obvious fuel flow restrictions.
2) The linkages all appear to move as they should. They do not appear to be sticking in my opinion.
3) I have checked the crankcase and I can see no obvious signs of leaks (It is very clean with no oil marks even after the last good run in the long grass
4)I re-checked the spark plug and its a light brown all over. I checked a few other 2 stroke engines I have and the plugs are all clean. I might be mistaken but could the slightly richer that 50:1 mix I am using be contributing to minor hunting issue, being that the engine is running to lean.
My test this morning revealed:
1) Idle is back to being ok (a little temperamental but pretty good for a two stroke)
2) Full speed is great as long as you get the throttle adjustment right, that is right on the full speed marker
3) Things get bad when you try any other throttle position as it starts to hunt quite a bit, so much it annoys me. I thought maybe these engines are only designed for idle and full speed.
I think we are getting closer to done. I am thinking about mixing a spot on batch of 50:1 unless you think otherwise.