The advice you are getting is great. I have just a couple of things to add. These engines take for ever to break in. I have .52, .70, and .80 FS Magnum engines and they get very nice after a gallon or two of fuel. In addition it is worthwhile to check the clearance between the rocker arm and the valve stem after about an hour of run time. Especially on a new engine, the clearance can widen as the engine breaks in, resulting in difficult starting and or loss of power. The correct gaps are listed in the instruction book. In the box, you might have even received the little feeler gauges necessary to check this.