Break-in isn't motor specific. You have to bring the engine up to running temperature (running slowly up and down the street). Run for about 5-7 minutes, shut the engine off, put the piston at BDC and let it cool COMPLETELY.
Repeat this for at LEAST 7-8 tanks, I'd spend about a quart if you want the engine to last. The key is to heat cycle the engine like you would a motocross bike or real car.
Aaron Waldron - LiveRC