Saito 150 great engine. Don't use 10%. It will knock and run like crqp. I use 30% Helicopter fule .
Also invest in a true turn spinner for 4 stroke engines. They have that extra knurling to grab the engine and prop. .
With mine I also run a perry pump. (The fuel tank is lower then the engine ) needle settings. Start rich on the low end high end. I know the high end on mine is 3 3/4 turns out. When mine fund through the air it looks like a smoke stream especially from mid to low end.
Good luck !!!
Van