The initial engine break-in was quite fun and the first video was about that.
2-stroke engines (as most of you know) require severe amont of extra oil in gasoline for the break-in period. Full-blooded racing engines like this one require even more and you need to run it obscenely rich and try to keep it alive with variable low rpms as I did, the over-rich mixture keeps trying to kill the plug constantly. I had a tachometer attached to the engine and max rpm recorded was 6150. So 10.000rpms to add up
When a 2-stroke engine is leaned out for max performance vs. durability then and only then will they REALLY start screaming. I'm used to these engines and can assure you that YOU HAVENT HEARD NOTHIN' YET