I finnaly tested the Ninja .12 T01A but it went all wrong for me.

I already runned dozens of engines and never happened anything like this.

After running in the engine and making a few tanks, trainings and qualifyings, after 25 minutes in the main final, in 2nd position and going well, the engine broke... the piston got stuck and the conrod broke. And this happend at low rpm in a slow part of the track.

The temperature has been running ok (100ºC~212ºF), nb 7 plug and good quality fuel.

Maybe it was just bad luck... I don't know...

Any thoughts?