Also for breaking in the engine, I would leave the Low side alone (it should be about 2 1/2 turns out), start with the high side at 3 turns out, working your way in at a 1/6 of a turn untill you run around 7 or 8 tanks of fuel, depending on your area you should end up at about 2 to 2 1/2 turns out on the high side, also during the break in period trim out the Carb with the radio so that it is open about an 1/8 inch, it should spit and spuder at first, but as you adjust the Carb it will lean out.