I put brand new Magnum FS 120 in my Funtana but I can not set the engine up at all.
When I go full throttle, it's smoking havily, then when I want to lean it out, it starts going from very lean ( hot) to very rich ( lots of smoke).
I took the cowl off and realized that idle adjustment screw was turned out maybe 6 turns or more.
Can it be the possible cause and if, when I should start adjustment, I mean how many turns out from totally closed ( I mean idle adjustment screw and niddle valve)
Please help.
Thank you.

Andrzej