blown engine

Hello everyone. Thought id make my first post a good long story. Had a 2006 zx6r that a slowly turned into a naked stunting bike. Did my wheelies and rolling burn outs and had a blast on the bike. The F1 light would blink every once in a while and flash and the next season the bike would lock...

Hi All, I bought a 2010 zx6r track bike a year ago. It was running great at the track, until the middle of the 2nd day when a valve broke and munged up the inside of the cylinder (see pics of piston and head). So I bought a 2012 motor with 500 miles on it, and my friend @ninjaman89...

I just purchased a 07 zx6r with 31k miles, and the person I bought it from said he blew the engine. He then showed me the hole in the lower crankcase; where I suspect a broken rod had punctured; but please feel free to tell me what you think could have gone wrong. I opened the airbox (no oil or...