RE: OS .21 Question
Hey! The carbs on these engines must almost always be turned, they arent seatet enough from the factory and they point in another direction.
Do like this loosen the screw that holds the carb, take the carb out and angle it in the direction you want, then push it down with some force and while you are pushing it down thighten the carb screw.
And remember to follow the break in procedure as stated in the manual.