Hey guys..
I have bought my first 4 stroke O.S FS 70II. I had about 3-4 full tanks of fuel on it only. Each time I start it it sounds better and seems to be more solid.. I start the engine by choke and its no problem it starts straight away by first turn. Today I went to my garden to start the engine again to adjust it or lets say, try to adjust it. I need to start the engine at 1/4 throttle becouse if lower the engine dies after 2/3 seconds. It seems to be unstoppable when the engine is 1/4 power or more. but 1/4 is not the idleing point. The engine seems to eat a hell lot of fuel as I ran the first few tanks at 3 turns approximately.. Why is the engine seem to run richer when I turn the needle right(when i close it) and runs leaner when I turn it left(when I open it)?? This is a bit confusing becouse I want to know what is the approximate amount of turns on the needle you have to make so the engine runs perfect when idleing.

Thanks Patryk.