I would break it in with a 7x6 [cut down 8x6], 25% castor and run at as fast a 4 cycle until the exhaust residue is clear, then go for a few rich 2 cycle runs, looking for a steady needle setting. Check the torque on every bolt after the engine cools down. Don't play with the throttle until the engine is broke in. I haven't heard anything yet about this engine, hopefully it turns out to be a screamer. Is it the same weight as the .36?