Hey i got my ifrst nitro RC the summer going into 7nth so your ahead of me when i started. It really isnt all that hard to perform a proper break-in. Set the needles as directed by the manufactionar. Run the engine for around 4 tanks, then lean it out a little bit (turn needles 1/8th turn clockwise). Run the car for 3-4 more tanks leaning it out a little bit more with each tank. When your breaking-in dont flor the car ( I know its tempting), eas on and off the gas never going past 3/4 throttle. I highly reccomend that you get a tempurature gauge before you start. Its especially for someone break-ing in the first engine so there sure there engine isnt getting too hot. Your engine tmepurature should never exceed 250. And it should be around 200. Also during break-in make sure the engine heats up to around 200, if you dont the parts wont seat themselvels and youll be wearing them down.

Of couse theres more to breaking in an engine but i was able to break-in my first engine with only this knowledge, and i had no problems.