RE: Ryobi, fourstroking at 50-70% of throttle.
I have tried almost every carb settings, if I lean the L needle more, it will lean out on idle, richer will cause the engine to load up, so I think I am very close with the setting I have. I have only tried 18x8 and 18x10, the behaviour is almost identical. Could a posible cause be reed flutter at some rpms, I guess I know more after I have tried an another carb tomorrow.